Shopping for baby clothes is fun until you realize the snaps are impossible to close or the fabric feels like sandpaper. You want outfits that are soft on sensitive skin and durable enough to survive the third diaper blowout of the day.
We analyzed fabric quality, snap durability, and countless designs to find the best options for your little one. We have found organic cotton picks for eco-conscious parents, nerdy prints for fandom families, and cozy essentials for everyday wear.
In this guide, we break down what to look for in fabric blends and share tips on how to keep those tiny outfits clean without ruining them.
Save your time and energy for the late-night feedings and check out our list of the best baby onesies.
Product Reviews
Whether you need a budget-friendly multipack or a specific holiday outfit, here are 17 reliable onesies to consider.
Star Wars Short-Sleeve 5-Pack Onesies
Best Star Wars Baby Onesie
If you want your little Padawan to join the rebellion early, these Star Wars bodysuits are a perfect choice.
You can choose from three different sets of five, ensuring your baby has a fresh look for every galactic adventure. The fabric is a cotton and polyester blend, which balances warmth with breathability.
We love the expandable lap shoulders. This feature allows you to pull the onesie down over the body instead of up over the head during messy diaper changes.
While these are marketed for boys, any “Little Trooper” will look adorable in these Wookie or Vader designs.
Simple Joys by Carter's 6-Pack Short-Sleeve Bodysuit
Best Onesie Pack
Babies burn through outfits quickly, so buying in bulk is often a survival strategy. This set gives you six reliable bodysuits in various prints, so you are covered for almost the entire week.
The 100% cotton fabric feels soft against delicate skin and holds up well in the washing machine.
Short sleeves are ideal for layering under sweaters in the winter or keeping cool during the summer heat.
The expandable necklines accommodate growing babies, and the reinforced nickel-free snaps stay closed even when your baby is wiggling around.
Plus, the tagless label design prevents that annoying itch at the back of the neck.
Babysoy Organic Baby Onesie
Best Animal Baby Onesie
Animal prints make everything cuter, but the fabric blend is the real star here. These are made from organic cotton and azlon from soy, creating a super soft and sustainable material.
This lightweight blend helps with dressing your baby in summer, yet it insulates well enough for layering in cooler months. The long sleeves provide extra coverage for breezy evenings.
You can pick from six unique animal prints, including a rabbit, chimp, or wolf, making these a great gift for nature-loving parents.
Babiy Logic Onesie
Best Nerdy Baby Onesie
If you live and breathe code, you likely want your baby to inherit your tech skills. This onesie features a clever HTML programming design and comes in pink, white, or blue.
The bodysuit uses high-quality, 100% cotton that feels substantial rather than flimsy.
The print uses durable ink designed to survive multiple washes without cracking or peeling.
It is an excellent, humorous gift for programmer parents who are currently “developing” their latest project.
Burt's Bees Baby Unisex Baby Short-Sleeve Bodysuits
Best Organic Baby Onesie
When skin sensitivity is a concern, organic clothing is often the safest bet. Burt’s Bees is famous for its GOTS-certified organic cotton that is gentle on eczema-prone skin.
These bodysuits are incredibly soft, stretchy, and breathable. The rib-knit fabric moves with your baby, providing a snug but comfortable fit.
You can choose from five different sets, each offering natural, earthy tones that are easy to match with any pair of pants.
Disney Baby Boys' Mickey 5-Pack Bodysuits
Best Disney Baby Onesie
Disney brings a touch of magic to the nursery. These sets allow you to dress your little one in classic designs featuring Mickey, Minnie, Winnie the Pooh, or The Lion King.
These bodysuits use a cotton and polyester blend that resists shrinking better than pure cotton.
The prints are machine-washable and designed to resist fading, so Mickey keeps smiling even after many trips through the laundry.
O2Baby Organic Cotton Onesie
Best Thick Baby Onesies for Winter
Keeping a baby warm during winter nights requires more coverage than a standard bodysuit provides. This option is actually a footless jumpsuit, offering full-body warmth.
It features a convenient zipper that runs down the front and leg. This makes late-night changes much faster than struggling with a dozen snaps.
The fabric is a blend of organic cotton and spandex, giving it enough stretch to fit over a full diaper comfortably. It comes in various prints and sizes ranging from newborn to 18 months.
Moon and Back Baby Set of 5 Organic Long-Sleeve Bodysuits
Best Soft Baby Onesies
If you prioritize fabric quality, Moon and Back (an Amazon brand by Hanna Andersson) delivers. These are thicker and softer than standard budget packs, making them perfect for chilly days.
The 100% organic cotton is Oeko-Tex certified, meaning it is free from harmful chemicals.
We appreciate the gender-neutral color palettes that move beyond standard yellow and green. They hold their shape well, even after repeated washing.
Hudson Baby Cotton Long-sleeve Bodysuits
Best Cheap Baby Onesies
You don’t have to spend a fortune to build a wardrobe. These Hudson Baby sets are highly affordable and have thousands of positive reviews backing them up.
You get 100% cotton material that handles messes well. There are dozens of prints available, so you can find something to match any style.
Sizing runs generous with this brand. If you need them to fit a newborn immediately, do not size up, or your baby will be swimming in fabric.
Tstars You Can Do This Dad
Best Funny Baby Onesie
Baby clothes can be confusing for sleep-deprived parents. This funny onesie features instructions on the front, offering a helpful “cheat sheet” for Dad.
Beyond the joke, it is a functional piece of clothing made from 100% cotton.
It features expandable shoulders for easy dressing and comes in blue, pink, or white. It is a guaranteed hit at baby showers.
Gerber Unisex Baby 5-Pack Short-Sleeve White Onesies
Best Plain White Baby Onesies
Sometimes you just need the basics. These classic white Gerber onesies are perfect for layering or for crafty parents who want to tie-dye or use a Cricut machine to make custom designs.
They feature double-stitched hems for durability.
However, Gerber is notorious for running small. We highly recommend buying at least one size larger than you think you need, especially since 100% cotton will shrink in the dryer.
Little Treasure Baby Cotton Bodysuits
Best for Christmas
Festive outfits are a must for holiday photos, but you want your baby to be comfortable, not itchy. These cotton bodysuits offer the Christmas look without the scratchy sweater feel.
They come in packs of three, offering variety for different holiday events. We love the “Santa Baby” option for girls and this set for boys.
The wide neck openings make it easy to slide over your baby’s head, ensuring everyone stays jolly during changing time.
Luvable Friends Baby Cotton Bodysuits
Best Unisex Baby Onesies
If you are waiting to find out the gender or just prefer neutral tones, these Luvable Friends bodysuits are a practical choice. They are also great to hand down to future siblings regardless of gender.
Made from soft cotton, they come in a wide range of solid colors beyond just white.
They are available in sizes up to 24 months, accommodating toddlers who still need the security of a snap-crotch shirt.
Warner Brothers Justice League Bodysuits
Best Superhero Baby Onesie
Let your baby channel their inner hero with these Justice League designs. The cotton and polyester blend is soft, breathable, and holds vibrant colors well.
The overlapping shoulders help speed up changes, which is vital when you are fighting crime (or dirty diapers).
It is a fun way for fans to show off their fandom. There is also an adorable Wonder Woman set for little heroines.
Baby Thanksgiving Onesie Outfit
Best for Thanksgiving
Thanksgiving is the perfect excuse for a themed outfit. This set ensures your baby is the cutest guest at the dinner table.
The “Daddy and Mommy’s Little Turkey” design is a crowd-pleaser. This four-piece set includes a romper, pants, hat, and matching headband, giving you a complete look in one purchase.
The cotton blend fabric keeps your baby comfortable while the family enjoys the feast.
Kewlent 3Pcs/ Outfit Set
Best for Halloween
Halloween costumes can be bulky and uncomfortable for infants. This outfit offers a festive alternative that feels like regular pajamas.
The “My First Halloween” pumpkin design works for boys or girls.
It is a three-piece set featuring a long-sleeved bodysuit, elastic-waist pants, and a matching hat. It allows your baby to join the spooky fun without the fuss of a complicated costume.
AW Fashions One-Piece Baby Bodysuit
Best Vulgar Baby Onesie
Sometimes you need a gift that brings a laugh. Whether for your own child or a friend with a good sense of humor, this onesie makes a bold statement.
The pure cotton fabric is stretchy and comfortable, ensuring the joke doesn’t come at the expense of comfort.
The ink is durable and withstands washing, so your baby can rock this sassy look multiple times.
Choosing the Right Fabric Material
Your baby’s skin is sensitive, so the fabric you choose matters. You want a material that regulates temperature while remaining soft to the touch.
We always recommend cotton for baby clothing. It is hypoallergenic and absorbs moisture, which helps keep your little one dry and rash-free.
If 100% cotton isn’t an option, look for blends that include polyester, spandex, or bamboo (viscose). These blends often offer better stretch and are easier to care for than pure cotton, which can shrink.
How Many Onesies Do I Need?
Babies are messy. Between spit-up, drool, and the inevitable poop explosions, you will change their outfit multiple times a day. We recommend starting with four to seven onesies in their current size.
If you prefer doing laundry once a week rather than every day, or if your baby has reflux, you should double that number.
Sizing Tips for Onesies
Predicting how fast your baby will grow is difficult. Sizes vary wildly between brands (Gerber runs small, while H&M runs big).
Here is a general guide to navigating baby sizes:
- Newborn: Fits babies up to 7 pounds. If you expect a larger baby, you might skip this size entirely.
- 0-3 months: Fits 7, 12 pounds (up to 23 inches). This is a safe starting point for many babies.
- 3-6 months: Fits 12, 17 pounds (up to 27 inches).
- 6-12 months: Fits 17, 22 pounds (up to 29 inches).
- 12-18 months: Fits 22, 27 pounds (up to 31 inches).
Helpful Tips
If you want to be prepared before the birth, buy just three or four newborn items. Stock up on the 3-6 month range instead. Once your baby arrives, you can determine which brands fit their body shape best (1).
How to Wash Baby Onesies
Always check the care label first. We suggest doing this before you buy to avoid “hand wash only” items.
You generally want to use a mild, perfume-free detergent to prevent skin irritation. Separate clothes by color and wash them with similar items. Fasten all snaps before washing to keep them from getting crushed in the machine or snagging on other clothes.
Baby Onesies FAQs
Do Newborns Need Long Sleeve Onesies?
Yes, newborns often need long-sleeve onesies because they cannot regulate their body temperature well. Long sleeves help keep them warm in cooler rooms or drafty houses.
Do Babies Wear Onesies Under Swaddle?
Yes, wearing a lightweight onesie under a swaddle is standard practice. It protects the baby’s skin from chafing against the swaddle fabric and adds a necessary layer of warmth without overheating.
Do Newborns Need Pants Over Onesies?
If the room is cool or you are going outside, you should put pants over a onesie. However, if it is warm inside, a onesie alone is usually sufficient for a newborn.
When Should Babies Stop Wearing Onesies?
Most babies stop wearing onesies between 18 and 24 months. This usually coincides with potty training, as onesies with snaps at the crotch make using the toilet more difficult.
Why Do Onesies Have Envelope Folds at the Shoulders?
The envelope folds allow you to pull the onesie down over the baby’s body instead of up over their head. This is a lifesaver during messy diaper blowouts, as it keeps the mess away from their face.
