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Best Narrow Car Seats of 2023

Got small back seats? Check out these top narrow car seats.

Need a car seat that will work for you in a narrow space? Have a smaller car or multiple children? You know it can be challenging to fit what you need in the back seat easily.

It’s not impossible, though. If you’ve been looking for the best narrow car seat, start here. We’ve put together a list of our favorites — we may have the solution you’ve been looking for.

Our Top Picks

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Product Comparison Table

Product Image of the Safety 1st onBoard 35 Air 360 Infant Car Seat (Raven HX)
Most Comfortable for Newborns
Safety 1st onBoard
  • Easy to clean
  • With energy-absorbing foam
  • Comfortable for small children
Product Image of the Diono 2019 Radian 3R All-in-One Convertible Car Seat, Grey Light (Discontinued...
Best for Three Across
Diono Radian 3R 3-In-1
  • Fits 3 across in most vehicles
  • Robust safety features
  • Offers extended harness wearing
Product Image of the Evenflo Chase Harnessed Booster, Jubilee , 18x18.5x29.5 Inch (Pack of 1)
Best for Younger Users
Evenflo Chase Booster
  • Four options for harness protection
  • Seriously safe
  • Designed for growing children
Product Image of the Maxi-Cosi Mico 30 Infant Car Seat, Midnight Black - Purecosi
Great With A Stroller
Maxi-Cosi Mico 30
  • Convenient to use
  • Easy to care for fabric
  • Adjustable base
Product Image of the Britax Marathon ClickTight Convertible Car Seat, Ollie
Best Custom Fit
Britax Marathon ClickTight
  • Easy to install
  • Comfortable for long rides
  • Steel frame & impact-absorbing base
Product Image of the Evenflo EveryStage DLX All-in-One Car Seat, Infant Convertible & Booster Seat,...
Easiest To Install
Evenflo EveryStage DLX
  • Trusted brand
  • Extended use
  • Simple to install
Product Image of the Chicco KidFit 2-in-1 Belt Positioning Booster Car Seat - Horizon, Navy/Red
Best Narrow Latch Seat
Chicco KidFit 2-In-1
  • SuperCinch latch system
  • Includes cup holders
  • Head & shoulder side-impact protection
Product Image of the BRITAX B-Safe 35 Infant Car Seat - 4 to 35 Pounds - Rear Facing - 1 Layer Impact...
Best for Small Babies
Britax B-Safe 35
  • Spring-assisted recline
  • Great design
  • Compatible with strollers
Product Image of the Evenflo Sonus Convertible Car Seat, Charcoal Sky
Perfect for Hot-Weather Travel
Evenflo Sonus
  • Lightweight & great for traveling
  • Offers built-in ventilation
  • High safety standards
Product Image of the Diono Radian 3R, 3-in-1 Convertible Car Seat, Rear Facing & Forward Facing, 10...
Easiest To Fasten
Diono Radian 3R
  • Easy to install
  • Slim footprint without sacrificing accessories
  • Side impact protection

The Best Narrow Car Seats of 2023

Here are 12 excellent narrow car seats to consider.

Best Narrow Infant Car Seats

1. Safety 1st onBoard 35 Air 360 Infant Car Seat

Most Comfortable for Newborns

This Safety 1st product is intended for children who weigh between 4 and 35 pounds. It’s equipped with the LATCH system and can also be fastened with the seat belt.

Though narrow, the seat offers a deep seat that helps keep your little one cocooned during use. The cushioning provides plenty of comfort, which is great for encouraging naps. It also serves to absorb impact and provide additional protection.

This is a two-piece system where the car seat base remains in the car. The basket portion detaches easily when needed and is lightweight enough to carry easily. It’s easy to clean and exceeds all required safety standards.

Photo of the Safety 1st onBoard 35 Air 360 Infant Car Seat

What We Like

Easy to Clean

The fabric and padding are easy to maintain on this product. When it’s dirty, the padded seat portion can be removed from the unit and placed in the washing machine. Once it’s been washed, it’s also safe to place in the dryer.

Constructed With Energy-Absorbing Foam

This car seat features GCell HX foam that helps protect your child from an accident. It’s a patented technology that’s used in race cars to protect the driver. This foam is inside the basket portion of the car seat.

If in an accident, this foam works to absorb and disperse extra force. This helps keep your little one from experiencing that force and serves to give extra protection.

Comfortable for Small Children

This unit is designed for infants. The padding is comfortable and offers a great, supportive cushion. The seat is deep, giving a nestled space for your child to occupy.

The high comfort level can stop your little one from missing important naps while you’re on the go. If you know you’ll be spending a lot of time in the car with your newborn; this can be a great feature.

What We Don't Like

The Seat Is Deep

This seat does offer a narrow base. It may not be appropriate for a short space, though. The deep basket that helps provide cushioning and comfort does take up extra room.

If you need significant legroom upfront or your backseat offers little depth, you may need a different car seat.

Product Specs

Product Weight 18.5 pounds
Dimensions 16.5 inches by 19 inches by 31.5 inches
Minimum Child Weight 4 pounds
Maximum Child Weight 35 pounds
Additional Features Reinforced carrying handle, Air Protect side-impact protection, adjustable harness, and canopy

2. Maxi-Cosi Mico 30 Infant Car Seat

Great for Using With a Stroller

This seat is a great option if you’re looking for a narrow car seat that’s compatible with a stroller. This unit works well with many Maxi-Cosi strollers as well as other premium stroller lines. Using this seat and choosing the exact stroller that suits your particular needs can be a great alternative to a traditional travel system.

This unit should be used by children who weigh between 5 and 30 pounds. Infants should be less than 32 inches in height. This unit is lightweight and offers a contoured arm that’s designed for your carrying comfort.

Photo of the Maxi-Cosi Mico 30 Infant Car Seat

What We Like

Convenient to Use

This is a good pick if you spend a lot of time on the go. The basket is designed to be comfortable while you’re toting your little one around. For those times you need a stroller, this unit can be paired with approved strollers for a full travel system.

This unit does include a stay-in-car base. However, you don’t need the base to install this seat safely. That can make it a good choice if you live or work in the city and frequently use hired drivers.

Comfortable, Easy to Care for Fabric

The fabric used is designed to wick away moisture and help keep your little one comfortable. It’s also easy to care for and can be removed when needed for deep cleaning. It’s safe to place in both the washing machine and the dryer.

Adjustable Base That’s Easy to Install

The base of this model is intended to stay in your car. That allows you to create the perfect installation for your base without worrying about having to do it repeatedly. It also reduces the time it takes you to get your little one in and out of the car.

The base can be adjusted to change the angle of the basket. This can allow for a more comfortable ride and helps to make the most of your available space.

What We Don't Like

Determining Stroller Compatibility With Other Brands Can Be Difficult

This seat is designed to be compatible with Maxi-Cosi’s line of strollers. They also advertise as being compatible with upper-end stroller brands. Maxi-Cosi doesn’t, however, make it a point to test or keep track of what other strollers this unit works with.

If you question a specific brand, you’ll want to reach out to the stroller company directly. They will have pertinent information about whether the seat is compatible with the stroller. If it isn’t compatible, they can point you toward other models that are.

Product Specs

Product Weight 8.6 pounds
Dimensions 16 inches by 18 inches by 31 inches
Minimum Child Weight 5 pounds
Maximum Child Weight 30 pounds
Additional Features Contoured carrying handle, base or no-base installation, LATCH system, stroller compatible

3. Britax B-Safe 35 Infant Car Seat

Best for Small Babies

This unit is a great narrow and compact car seat. Its narrowness carries through to the entire seat, making it a good option for fitting multiple kids in the back seat.

It has an easy-to-use LATCH system: a steel frame and side-impact protection work to keep your little one safe. The base will also help absorb any impact force.

It’s approved for children who weigh between 4 and 35 pounds. They should be less than 32 inches tall.

What We Like

Spring-Assisted Recline

This car seat features an easy-to-use reclining system. It helps you give your child a comfortable ride every time. It has a visual indicator, so you know when the angle is correct and the unit is properly installed.

Easy to Install

This Britax model is equipped with a Safe Center LATCH system. It’s simple to install using the LATCH tethers. After they’re attached to the tether point, you can get a tight fit from adjusting from a single location.

You’ll want to situate your base first before putting the car seat basket in. The seat can also be installed without the LATCH system if needed.

Compatible With Strollers

This model is designed to work with Britax strollers as part of a travel system. It’s also compatible with strollers from other companies. BOB strollers and Duallie strollers will make both work with it, though you’ll need to buy an adapter separately.

What We Don't Like

The Inside Is Narrow

Although it takes up little width in the back seat, it still packs plenty of padding inside. The result is that there are just about 13 inches of inner space for your little one.

Some babies may object to the tight fit inside their car seat. There’s also the potential they’ll outgrow the car seat faster than you anticipate. The tighter fit may also be more problematic during warm months when the seat may get hot during car rides.

Product Specs

Product Weight 10 pounds
Dimensions 26.5 inches by 17.75 inches by 25 inches
Minimum Child Weight 4 pounds
Maximum Child Weight 35 pounds
Additional Features Safe Center LATCH installation, Quick-Adjust harness, side-impact protection

Best Narrow Convertible Car Seats

4. Diono Radian 3R Convertible Car Seat

Best for Three Across

The Diono Radian seat has been specifically designed to take up little space so three can fit across a single back seat. It can be used for children who weigh as little as 5 pounds.

This unit provides extended rear-facing and can be used with children who weigh up to 40 pounds. Once facing forward, it can be used as a car seat with a harness or a booster seat. It’s for use in this manner by children who weigh up to 100 pounds.

It’s approved for air travel and features a heavy and sturdy steel alloy frame. It offers side-impact protection and memory and EPS foam to absorb energy and impact. Multiple color options are available.

Photo of the Diono Radian 3R Convertible Car Seat

What We Like

Fits Three Across in Most Vehicles

This model has been built to be narrow not just through the base but all the way up through the back and headrest as well. This makes it a great candidate for optimizing what space you have in the back seat.

They haven’t skimped on padding. This seat is lined with memory foam padding to give your little one a comfortable ride.

Easy to Clean

The seat sports a soft and cozy plush-knit cover. It’s comfortable for your little one to sit in for long periods of time and is also machine washable and dryable. Remove the cover, wash and dry, and it’s ready to pop back on the car seat and get on the road.

Offers Extended Harness Wearing

This unit offers a higher weight limit for rear-facing. Because of that, your little one can stay rear-facing longer until they weigh 40 pounds. It’s widely agreed that rear-facing offers your little one the most protection possible during an accident.

Once your child is forward-facing, it’s recommended they continue to use the five-point harness as long as possible. The Diono harness is rated for use through 65 pounds. Once your little one has outgrown the harness, they can safely progress to using a seat belt.

What We Don't Like

There Are No Armrests

To maximize space and keep these car seats as narrow as possible, Diono has skipped armrests. This removes any potential barriers between multiple children and may impact comfort for longer trips and naps. This may not matter much if your child has never used armrests but may otherwise be difficult to become accustomed to.

Product Specs

Product Weight 28.5 pounds
Dimensions 16.1 inches by 16.9 inches by 28.4 inches
Minimum Child Weight 5 pounds
Maximum Child Weight 100 pounds
Additional Features Machine washable cover, LATCH system, steel alloy frame

5. Britax Marathon ClickTight Convertible Car Seat

Best Custom Fit

Have a picky passenger when it comes to your child and getting a good fit in a car seat? This model from Britax offers plenty of customization opportunities.

There are seven recline positions available, which can be helpful when navigating a tighter space. There are 14 positions for the harness and a buckle that features two-position possibilities.

This unit features the unique ClickTight system instead of the LATCH system. It allows you to securely fasten the car seat into the vehicle quickly and easily use the seat belt. It can be used for children who weigh between 5 and 40 pounds rear-facing and 20 to 65 pounds while forward-facing.

Photo of the Britax Marathon ClickTight Convertible Car Seat

What We Like

Easy to Install

The ClickTight System makes installation easier than ever. Lift the seat’s padding and slide the seat belt through the belt path and the back of the unit. It clicks in quickly and securely into the belt buckle.

Installation takes just moments and gives a tight and secure fit. It’s a great feature for when your car seat is frequently used in multiple cars.

Comfortable for Long Rides

This unit features plenty of cushioning. This helps create a more comfortable spot for your child to sit. It also keeps them better protected if you experience side impact.

The customizable incline level also helps create what your little one needs. The headrest and harness can be extended as needed when your child grows, making sure your little one stays comfortable.

Steel Frame and Impact-Absorbing Base

A steel frame provides great structure and a safe space for your little one. The extended wings help keep the head protected and work to absorb any impact. This model is a single piece and features a base that also serves to absorb that force.

What We Don't Like

It’s a Little Bulky and Heavy

This model does offer a more narrow base than some others. It’s not, however, a space-saving unit designed to fit three across the backseat.

It is also heavier than many others out there. If you plan on moving it frequently, this may be a drawback for you.

Product Specs

Product Weight 27 pounds
Dimensions 23 inches by 18.5 inches by 23.5 inches
Minimum Child Weight 5 pounds
Maximum Child Weight 65 pounds
Additional Features Adjustable headrest, seven recline positions, adjustable harness and buckle, ClickTight install, LATCH compatible

6. Evenflo Sonus Convertible Car Seat

Perfect for Hot-Weather Travel

Looking for something to keep your little one comfortable during hot weather? This unit from Evenflo features a built-in ventilation system designed to keep your child cool and comfortable. It also has a slim footprint that’s suitable for three across.

It’s lightweight and also approved for air travel. It’s suitable for children to use rear-facing when they weigh between 5 and 40 pounds. Forward-facing, the seat is good for children who weigh between 22 and 50 pounds.

Photo of the Evenflo Sonus Convertible Car Seat

What We Like

Lightweight and Great for Traveling

This car seat weighs in at just 13 pounds. A single piece that makes it a great option for swapping back and forth between cars.

Being lightweight helps make it a little easier to navigate through an airport when traveling if you need it for that.

Offers Built-In Ventilation

A built-in ventilation system helps keep air moving through the seat. This may keep your child from becoming overheated. It also helps prevent sweat from accumulating during a longer period in the car.

Staying cool and dry is key to keeping your little one comfortable while on the road.

High Safety Standards

Evenflo meets high safety standards. A leader in the Rollover Test Standards, it meets or exceeds all federal safety standards. The seat also features side-impact protection and has been approved by the FAA as safe for airplane use.

What We Don't Like

The Car Seat Is Long

This unit is narrow and designed to work for three kids in a backseat. It’s also a long car seat, though, which can be problematic for some cars when rear-facing.

Plan to use your car seat rear-facing and have a smaller car? You’ll want to double-check fit ahead of time while the front seats are in their preferred position.

Product Specs

Product Weight 13 pounds
Dimensions 20 inches by 19.25 inches by 28 inches
Minimum Child Weight 5 pounds
Maximum Child Weight 50 pounds
Additional Features Ventilation system, two removable cup holders, buckle pockets, machine washable, FAA-approved

Best Narrow 3-In-1 Car Seats

7. Diono Radian 3R 3-In-1 Car Seat

Easiest to Fasten

This car seat can be used with children who weigh between 5 and 120 pounds. It does offer extended rear-facing and can safely support a child rear-facing through 50 pounds. Front-facing, it can be used with the harness through 120 pounds and then as a booster through 120 pounds.

This model is available in multiple colors and offers side-impact protection. A 5-point harness helps you give your child a custom fit every ride.

Another great asset is its convertible feature which grows with your child.
Photo of the Diono Radian 3R 3-In-1 Car Seat

What We Like

Easy to Install

One great perk I love about this car seat is its SuperLATCH system that enables a breeze installation. A single click will tell you that the connectors are securely locked in place.

Slim Footprint Without Sacrificing Accessories

This is a slim car seat that strives to provide the same comforts as its larger, bulkier competitors. Despite its more petite frame, it still offers plenty of comfortable cushioning. The car seat shell is also equipped with side-impact protection.

It features plenty of adjustabilities and reclines options. It also sports a cup holder for older children to use during car rides.

What We Don't Like

Not Suitable for Air Travel

Though this car seat can be used for an extended period of time, I must warn you that this car seat can only do so much during travel by plane because of its weight. If having a car seat that is lightweight is important to you, you may want to consider another car seat.

Product Specs

Product Weight 26 pounds
Dimensions 16 inches by 17 inches by 28.5 inches
Minimum Child Weight 5 pounds
Maximum Child Weight 120 pounds
Additional Features Integrated cup holder, side-impact protection, SuperLATCH system, high-back booster

8. Evenflo EveryStage DLX Car Seat

Easiest to Install

The Evenflo EveryStage car seat is simple to install and is designed for 10 years of use. It allows extended rear-facing use — all the way through 50 pounds. This easily brings you to 2 years of rear-facing — and beyond.

It also offers prolonged use as a booster seat and is suitable until your child is 120 pounds. An in-seat recline system helps give a great and comfortable fit for your child. At the same time, it doesn’t compromise the space in your car.

The harness is easy to adjust and doesn’t need to be rethreaded. The car seat cover is machine washable and can be placed in the dryer. The unit also features two integrated cup holders that don’t extend beyond the car seat’s frame.

Photo of the Evenflo EveryStage DLX Car Seat

What We Like

Easy to Care For

The padding pieces and cover can be machine washed as needed. This is great for those times where a quick spot cleaning just won’t do the trick.

The integrated cup holders also feature removable lining cups. These can be placed in the dishwasher when needed for a good clean. Simply reassemble, and your car seat is ready to get back on the road.

Extended Use

We love that this model helps keep your little one safe for as long as possible. The extended weight limit for rear-facing, plus the unique recline system, helps keep your child safe and happy into childhood.

Once rear-facing, your child will be able to continue to use the car seat with the harness. When they graduate to the booster seat, they’ll be able to use the seat until they weigh 120 pounds. This is a great feature for growing quickly but not ready to be without the booster.

Simple to Install

This car seat features the EasyClick installation system. It’s a LATCH-based system that allows for quick tightening once the LATCH tethers are in place. Simply use the ratchet-style straps to get a safe, tight fit every time in just a matter of moments.

What We Don't Like

There’s No Carrying Handle

This unit isn’t hefty, but you’ll always need two hands to carry it with. There’s not a good gripping spot, and there is no carrying handle. If you plan to switch this seat between cars often, know you may be juggling both the car seat and your child.

Product Specs

Product Weight 22 pounds
Dimensions 22 inches by 19 inches by 26.5 inches
Minimum Child Weight 4 pounds
Maximum Child Weight 120 pounds
Additional Features EasyClick installation, side-impact protection, adjustable headrest and harness, in-seat recline system

9. Cosco Finale DX 2-in-1 Combination Booster Car Seat

Best Budget 2-In-1 Buy

The Cosco Finale DX features a compact footprint with a narrowness that extends from the base up through the back of the seat. It’s a good option when you need to fit three car seats across the back seat.

It features a detachable side-positioned cup holder. For space-saving needs, especially when traveling with three across, you’ll likely want it detached.

This car seat’s five-point harness helps keep your little one safe and comfortable. It can be used by children who weigh between 30 and 100 pounds.

Photo of the Cosco Finale DX 2-in-1 Combination Booster Car Seat

What We Like

Great for Three Across

The seat is narrow through the back of the car seat as well. This means side-by-side units won’t run up against each other if installed across the back seat. Many car seats have pronounced wings that inhibit installation next to each other in smaller spaces.

Best for Travelling

Weighing as little as 11.50 pounds, this unit is very portable and can be used for traveling. Users reported that they had used this car seat with their travel by plane.

What We Don't Like

Short Strap

For babies with bigger built, there is a chance that the strap might not fit well. This is a case-to-case basis, though, depending on your little ones built, so be sure to assess your child before purchasing this properly.

Product Specs

Product Weight 11.5 pounds
Dimensions 18.25 inches by 19 inches by 29.75 inches
Minimum Child Weight 40 pounds
Maximum Child Weight 100 pounds
Additional Features Detachable cup holder, adjustable harness

Best Narrow Booster Car Seats

10. Evenflo Chase Harnessed Booster Seat

Best for Younger Booster Users

This booster offers the use of a harness as well as a seat belt. It’s safe to use for children who are 22 pounds or greater and can be used with the harness through 40 pounds.

This unit features two integrated cup holders and is available in multiple colors. It’s LATCH system compatible and lightweight, which makes it a great option when frequently changing cars.

The seat is appropriate for children over the age of 2 who are at least 28 inches tall. It can be used until children are 57 inches tall or until they reach 110 pounds.

Photo of the Evenflo Chase Harnessed Booster Seat

What We Like

Easy to Care For

The padding for this booster seat is easy to maintain. When it becomes dirty, it can be removed and washed in the washing machine. Afterward, tumble dry on low for 15 to 20 minutes before putting it back on your booster seat.

Seriously Safe

All boosters are safe, but Evenflo has held this model to a higher standard. This model has successfully passed side-impact and structural integrity tests at nearly twice the required levels. If you’re anxious about moving away from a car seat to a booster seat, this may be a good option for you.

Designed for Growing Children

This unit features an adjustable harness. Four preset harness heights help accommodate your growing child and let them remain in the harness for longer. An easy-to-use up-front adjustment makes minor changes quick and simple to give a great fit.

When your child is ready for a seat belt, a belt-positioning path makes sure your child is always buckled in correctly. This can have your little one mastering their own fastening a bit faster.

What We Don't Like

Doesn’t Have Quick Release LATCH Tethers

This seat does feature the LATCH system. It doesn’t have the easy-to-use seatbelt-style buckle many new models have. Instead, it uses an older manual LATCH tether.

This LATCH system is just as effective but may add a little more time to your installation.

Product Specs

Product Weight 11 pounds
Dimensions 18 inches by 18.5 inches by 29.5 inches
Minimum Child Weight 22 pounds
Maximum Child Weight 110 pounds
Additional Features Integrated cup holders, harness and seat belt fastening, LATCH system, adjustable harness, and headrest

11. Chicco KidFit 2-In-1 Booster Seat

Best Narrow Latch Compatible Booster Seat

The Chicco KidFit seat offers plenty of customization to best suit your growing child. The back has 10 positions to help provide consistent protection for your child’s head and neck. It can be used as a high-back booster but can also be used as a backless booster.

This booster seat is LATCH compatible and features the SuperCinch LATCH system. This system allows tightening from a single location once the LATCH tethers are in place. This makes getting a nice, tight fit fast and simple.

It’s designed for serious travel with armrests and back wings to help keep your little one comfortable. The integrated cup holders can be folded away when not in use to save space. When dirty, they can be removed and placed in the dishwasher for cleaning.

Photo of the Chicco KidFit 2-In-1 Booster Seat

What We Like

SuperCinch LATCH System

The SuperCinch LATCH system makes installing your booster seat easier than ever. The tethers are simple to use. Just depress and slide onto the LATCH point.

To tighten the strap, you’ll use a center strap. It allows you to easily tighten your seat and create a fit that won’t move around. Even better, your booster seat will stay in place as your child gets in and out of the car.

Easy to Care For

This model is convenient to care for. The padding can be removed and washed, and dried in your home washing machine and dryer. The armrest covers can also be removed and washed.

What We Don't Like

Doesn’t Feature a Harness

If you’re looking for a booster seat for a younger rider, you may want to consider a model that offers a harness. This unit is strictly for use with a seat belt and won’t suit young children. It should be used with children aged 4 years and older who weigh more than 40 pounds.

Product Specs

Product Weight 10.2 pounds
Dimensions 16.5 inches by 18.75 inches by 32.75 inches
Minimum Child Weight 40 pounds
Maximum Child Weight 110 pounds
Additional Features Recline, fold-away cup holders, backless and high-back modes, SuperCinch LATCH, side-impact protection

12. Evenflo Maestro Sport Booster Seat

Best Narrow Harness Booster Seat

This booster seat can be used with either a harness or the car’s seat belt. The harness can be used for children who weigh between 22 and 50 pounds. Once over 50 pounds, your little one can continue to use the booster with the seat belt until they weigh 110 pounds.

The harness is easy to adjust from the front of the seat. This helps you ensure your child has a great fitting harness every time they’re in the car. A shoulder belt guide helps make sure the seat belt is in the right place when using it to fasten your child.

What We Like

Easy-To-Adjust Harness

We love that you can use a harness with this booster seat to keep your little one safe. Even better, it’s easy to use. When you need to adjust it, a center adjustment allows you to tighten and release as necessary.

Machine Washable

When needed, the cover can be removed and placed in the wash. Spot cleaning and wiping down the plastic body and components can help keep the unit clean in between washings.

What We Don't Like

Doesn’t Recline

Reclining isn’t an option with this model. If your little one is spending a lot of time in their booster, naps may be compromised. There’s not much support to be had for a napping child.

Looking for a seat, your child can comfortably sleep in for long periods of time? You may want to consider another option.

Product Specs

Product Weight 9.6 pounds
Dimensions 17 inches by 19 inches by 27.5 inches
Minimum Child Weight 22 pounds
Maximum Child Weight 110 pounds
Additional Features Cup holders, side-impact protection, LATCH system, harness, and seat belt fastening

Product Comparison Chart

Product Award Seat Weight Dimensions Min. Weight Max. Weight
Safety 1st onBoard Most Comfortable for Newborns 18.5 lbs 16.5″ x 19″ x 31.5″ 4 lbs 35 lbs
Maxi-Cosi Mico Great With a Stroller 8.6 lbs 16″ x 18″ x 31″ 5 lbs 30 lbs
Britax B-Safe Best for Small Babies 12 lbs 26.5″ x 17.75″ x 25″ 4 lbs 35 lbs
Diono Radian 3R Best for Three Across 28.5 lbs 16.1″ x 16.9″ x 28.4″ 5 lbs 100 lbs
Britax Marathon Best Custom Fit 27 lbs 23″ x 18.5″ x 23.5″ 5 lbs 65 lbs
Evenflo Sonus Best for Hot-Weather Travel 13 lbs 20 ” x 19.25″ x 28″ 5 lbs 50 lbs
Diono Radian 3R Easiest to Fasten 26 lbs 16″ x 17″ x 28.5″ 5 lbs 120 lbs
Evenflo EveryStage Easiest to Install 22 lbs 22″ x 19″ x 26.5″ 4 lbs 120 lbs
Cosco Finale DX Best Budget 2-In-1 Buy 11.5 lbs 18.25″ x 19″ x 29.75″ 40 lbs 100 lbs
Evenflo Chase Best for Younger Users 11 lbs 18″ x 18.5″ x 29.5″ 22 lbs 110 lbs
Chicco KidFit Best Narrow LATCH Seat 10.2 lbs 16.5″ x 18.75″ x 32.75″ 40 lbs 110 lbs
Evenflo Maestro Sport Best Narrow Harness Seat 9.6 lbs 17″ x 19″ x 27.5″ 22 lbs 110 lbs

When to Use a Narrow Car Seat

You may find a narrow seat beneficial to you if you drive a compact car or have multiple children.

If you regularly have other passengers in the car, a narrow seat can help free up some much-needed space. You may find this option gives you the room you need for groceries or other equipment.

A narrow car seat will have a compact base. If there are cup holders, they will be positioned so they won’t overhang the seat. Many cup holders will be detachable or repositionable.

When considering how narrow a car seat is, don’t forget to factor in the upper portion of the car seat. Ideally, in a narrow space, the car seat will remain in-line with the base. Many car seats feature a rounded upper portion for increased comfort, especially for younger children.

You’ll want to make sure the car seat fits as anticipated in your vehicle. Always install exactly as you plan to use it, with additional car seats in the car and the driver seat positioned properly. This will give you a clear picture of your space in the back seat — and help identify any needed changes.

Types of Car Seats to Consider

Your child’s age and your personal needs will influence the kind of narrow seat you’re in the market for. Here are the most common car seat options.

Infant Car Seats

Infant car seats are designed specifically for young children. They usually feature a gentle recline and plenty of cushioning to help keep your little one positioned properly. Infant car seats are always used while rear-facing.

They frequently slide into a base. The basket portion of the car seat has a carrying handle and a sunshade. This helps you remove your child from the car quickly and easily, without disturbing them if they’re asleep.

The separate base also allows you to situate your car seat’s fit in the vehicle perfectly. You can then remove your car seat as needed without having to fuss with setting it every time. Additional car seat bases can usually be purchased separately, which can be helpful for multiple-car households.

Infant car seats often have strollers they are designed to work with. This enables you to remove the car seat from the car and snap it directly into a stroller. This is a great feature for when you’re running errands, and your little one is napping.

These car seats often feature low-weight maximums and can become heavy and cumbersome to carry as your child grows. You may need to replace your car seat with one geared toward older children within the first year.


  • Provides a comfortable fit for newborns.
  • Easy and convenient to get in and out of cars.
  • Simple to use in multiple car households.


  • Not made to be used for more than a year or so.
  • Can be cumbersome and bulky.

Convertible Car Seats

Convertible car seats can be used for a prolonged period of time in multiple modes to suit your growing child. This can allow you to make fewer car seat purchases. It can also make it easier to help your child transition to new car seat stages.

These can be used both rear- and forward-facing. This doesn’t always mean they’re suitable for the entirety of your little one’s childhood, though. Different convertible car seats have various weight restrictions you’ll need to pay attention to.

These car seats often have additional extra features older children will enjoy having. They may have adjustable headrests, cup holders, and even footrests.


  • Offer a prolonged period of use.
  • Can be used forward-facing and rear-facing.
  • May have additional features.
  • Offer customization through the headrests and harness.


  • Usually work best for children in the middle of the provided age range.
  • Can be tedious to move from car to car.
  • May be heavy.

3-In-1 Car Seats

A 3-in-1 seat is a specific kind of convertible car seat. It can be used rear-facing or front-facing with a five-point harness. Once your child has outgrown the five-point harness, these can be used as a booster seat.

They do tend to be heavy and take up a significant amount of space. They strive to fill multiple roles and may not work for the extremes of the recommended size range. They are frequently comfortable and offer plenty of customization to give your child a good, safe fit.


  • Can work for the duration of your child’s car seat years.
  • Comfortable for long trips.
  • Features additional accessories like cup holders.
  • Offers recline options and adjustable components.


  • Heavy and more difficult to move between cars.
  • May not work as well for very young babies.

Booster Car Seats

Booster seats are appropriate for older children. They don’t use a harness and are fastened into place with a regular seat belt.

The point of a booster car seat is to lift your child. This allows the seat belt to fall across their body properly so they’ll be protected in an accident (1). Some boosters also feature belt-positioning clips or slots to help keep the seat belt in place.

Many have a high back, allowing for extra protection through the head, neck, and body. Many high-backed boosters feature side-impact protection, and they are usually considered a safer, better option than the backless booster.

Both backless and high-backed boosters have been fully safety tested and approved. They often have great features, like cup holders, for older children who are on the go.


  • Great for older children.
  • Offer nice traveling features.
  • Positions your child properly for seat belt restraint.


  • May not be as comfortable for long trips.
  • Don’t always feature LATCH compatibility.

How to Choose a Narrow Car Seat

When shopping for a narrow seat, you’ll want to keep the following things in mind. This will help you determine which model — and which type — will best suit your family.

Length of Use

This will help you identify which type of car seat will be best for you. If you’re looking for longevity, you’ll want to stick with something that can grow with your child. If you’re interested in a certain timeframe, like early infancy, you may want a specialty car seat instead.

Features You Need

If you’re traveling by plane frequently, you may want something approved by the FAA for air travel. If you’re a road tripper, you might need something comfortable for long rides. Think about how you’ll be using your car seat to determine best what features you’re looking for.

Ease of Installation

This is especially important if you plan to shuttle your car seat between vehicles frequently. You want a car seat that won’t be frustrating or time-consuming to install.

Easy to Clean

It’s a fact of life that car seats get dirty. Your car seat should be easy to clean in case of a spill or leaky diaper. You may also want to consider materials or colors that resist staining.

Your Budget

This may play an important role in choosing your car seat. Know that car seats are available at all price points and set a price range for your purchase.

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Katelyn Holt RN, BSN, BC

Katelyn Holt RN, BSN, BC is a cardiology nurse and freelance medical writer. Katelyn has 8 years of nursing experience inpatient and outpatient, primarily medical-surgical and cardiac. After having two children she has a passion for Women’s Health and Lactation teaching and support.