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Best Maternity Swimsuits: 2025 Picks

Updated
Find a maternity bathing suit you'll actually want to wear.
Pregnancy heat is no joke. Swimming offers sweet relief for aching joints and a swollen body, but finding a suit that fits a changing bump without breaking the bank is tough. You don’t want to spend a fortune on something you might only wear for a few months.

We solved this by rounding up the best maternity swimwear, from flexible one-pieces to supportive tankinis. We found options for every budget so you have no excuse to skip the pool when the temperatures rise.

Our Top Picks

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Retro Vibes: Ziola Tankini
  • Wide, adjustable straps
  • Triangle faux wrap bust design
  • Ruched side design for a flattering fit
Super Supportive: Momo Maternity UPF 50+
  • 50+ UPF rated material
  • Adjustable wide halter neck strap
  • Stylish look
Just What You Need: Oceanlily Halter Tankini
  • Chlorine resistant
  • Quick-dry fabric
  • Modest yet stylish
Beautiful Bottoms: Oceanlily Over The Belly
  • Versatile
  • High waist feature
  • Made to last
Full Coverage Tankini Top: Oceanlily Ruched
  • Two prints to choose from
  • Thick shoulder straps
  • Fits different body types
Playful Print: Oceanlily Twist
  • Well-designed
  • High quality
  • Great chest support
Stays Where it Should: Speedo Endurance
  • Bust support
  • Ruched side panels
  • Fits throughout entire pregnancy
Support Where You Need It: Ginkana Bikini Set
  • High waist bottom
  • Removable cups
  • Comfortable to wear
Hottest Halter Top: EastElegant Maternity Swimwear
  • Flattering halter neck design
  • Removable chest pad
  • Multiple color options
Hot Stuff: Maternal America O-Ring
  • Open back swimsuit
  • Trendy and stylish
  • Machine washable

Types of Maternity Swimwear

Maternity bathing suits mimic regular swimwear styles but add crucial fabric allowances for your bump. Here are the most popular cuts:

  • One-Piece: This is the standard swimsuit with extra length and stretch in the front panel to cover a swollen belly comfortably.
  • High-Waisted/Over-the-Belly: This retro style is back. It pairs a bikini top with a full-coverage bottom that pulls up over the bump for a secure fit.
  • Maternity Tankini: This pairs a full-coverage top with a bikini bottom. You get the bathroom convenience of a two-piece with the modest coverage of a one-piece.
  • Bikini: This is for moms who want to rock the bump or minimize wet fabric on their skin. It usually features a supportive top and bottoms that sit under the belly.

How to Choose a Maternity Swimsuit

Comfort is king when you are expecting, but there are a few other specs to check before buying:

  • Support Features: Your chest is likely heavier right now. Look for suits with adjustable straps, molded cups, or built-in shelf bras to keep everything secure while you swim.
  • Room to Grow: You don’t want to buy a new suit every trimester. Look for side ruching (gathered fabric) or high-stretch spandex blends that expand with your belly and hips.
  • Sun Protection: Pregnancy skin is sensitive. Fabric with a high UPF rating adds an extra layer of defense against burns.
  • Leg Cut: If you feel self-conscious about your thighs, a lower leg opening or a swim skirt offers more coverage. High-cut legs can help shorter legs look longer.

Product Reviews

We analyzed fit, fabric stretch, and style to bring you our favorite maternity swimsuits of the season.

Ziola Maternity Tankini

Retro Vibes

This tankini set offers versatility with a choice of 11 colors. The twist at the bustline creates a flattering focal point, while the removable cups allow you to adjust the silhouette based on your preference. Adjustable straps are a huge plus here, ensuring the top stays up properly as your body changes.


Momo Maternity Bathing Suit

Super Supportive

If you need serious structure, this suit delivers. It features adjustable shoulder straps and sewn-in bra cups for proper lift. The higher neckline prevents spilling out, making it a great choice for active swimming. The nylon material also includes built-in sun protection to keep your skin safe.


Oceanlily Halter Maternity Swimwear Top

Just What You Need

This racerback halter mixes athletic function with style. The modest neckline keeps you covered, while the fitted torso prevents the fabric from floating up in the water. It is a solid option for moms who plan to swim laps for exercise.


Oceanlily Over-the-Belly Maternity Swimwear Bottoms

Beautiful Bottoms

Finding separate bottoms is helpful if your top and bottom sizes differ. These bottoms feature a versatile 3-in-1 waistband that adjusts as your belly expands.

The fabric offers a classic sheen and ample rear coverage. You can pull the panel all the way up for full bump support or fold it down for a breezier feel.


Oceanlily Ruched Front Maternity Swimwear

Full Coverage Tankini Top

This tankini top is designed for moms who want coverage without the restriction of a one-piece. The adjustable straps and special back panel offer necessary chest support for heavier busts.

The best feature is the extra fabric around the midsection. You won’t spend your beach day tugging the hem down over your bump.


Oceanlily Maternity Twist Front Tankini Top

Playful Print

This top (bottoms sold separately) prioritizes security with thick straps and large, soft cups. The mesh lining prevents the suit from absorbing too much water and getting heavy. Its V-neck silhouette is universally flattering and accommodates various body shapes comfortably.


Speedo Endurance Black Maternity Swimsuit

Stays Where it Should

While it lacks the typical racerback of a competition suit, this Speedo model holds up well for lap swimming. It is a basic, reliable black suit with a modest leg cut. If you want a no-fuss option for water aerobics or daily exercise, this is the one.


Ginkana Bikini Set

Support Where You Need It

This set allows you to wear a bikini without feeling overexposed. The high-waisted bottoms cover the belly for support, while the top features adjustable straps for a trendy look. The removable cups are a nice touch if you need extra room up top.


EastElegant Maternity Swimsuit

Hottest Halter Top

You can still rock a retro look while pregnant. This one-piece features a halter tie and a classic V-neck. The removable chest pads allow for customizable bust support.

The side ruching is the key feature here, allowing the suit to expand gracefully along with your bump throughout the second and third trimesters.


Maternal America O-Ring Maternity Swimsuit

Hot Stuff

The plunging neckline and open back offer a sexy alternative to modest maternity wear. An adjustable halter helps you dial in the lift you need. The medium-cut legs provide coverage without looking frumpy, and the machine-washable fabric makes care easy.


Beachcoco Maternity Maxi Tube Dress

Flowing, Feminine, Fetching

This is the perfect transition piece for going from the beach to dinner. It is a cover-up made of elastic knit jersey, so it slips on easily over a wet suit. The strapless design keeps it cool, and the flowy skirt accommodates any size bump.


PEZ D’OR Montego Bay Maternity Bikini

Perfectly Chic

This bandeau-style top is chic and adjustable based on your breast size. It features side boning for structure, which is rare in bandeau tops. The bottoms sit comfortably below the belly, and the full lining ensures opacity even when wet.


Mermaid Maternity Boy Short Swim Bottoms

Cute and Casual

If standard bikini bottoms chafe or ride up, try these boy shorts. They are fully lined and hug the hips to stay in place during movement. The full over-the-belly panel adds versatility; wear it up for support or fold it down for comfort.


Mermaid Maternity Retro Swim Brief

Fold-Up/Fold-Down

These briefs give you control over your waistline height. Wear the panel over your belly or mid-belly depending on how sensitive your skin feels that day. The modest leg opening ensures your bum stays covered while you chase toddlers.


Mermaid Maternity Skirt with Boy Short

Flirty and Flattering

A swim skirt is ideal for moms self-conscious about their upper thighs. This unit features attached boy shorts underneath, so you are fully covered even if the skirt floats up in the water. It transforms a simple swim top into a cute, full outfit.


Mermaid Maternity Rash Guard Swim Shirt

Total Coverage

Sometimes you need more coverage than a bikini top can offer. This rash guard is perfect for long days in the sun or active water play. It dries quickly and helps prevent sunburn on your shoulders and back, which are hard to reach with lotion.


Mermaid Maternity Board Shorts

Easy-Going Comfort

Board shorts offer a relaxed fit that many moms love. These include a built-in brief, so you don’t need to wear separate bottoms underneath. The waistband is flexible, allowing you to wear it over the belly for coverage or under it for airflow.


Aontus Tankini Pregnancy Swimsuit

Made for Comfort

Available in sizes up to 3XL, this suit accommodates a wide range of body types. The soft cups offer decent support for larger breasts without underwire digging in. The cross-strap back design helps keep the straps from slipping off your shoulders.


Bhome Tankini Summer Swimsuits

Cute but Covered

The flowing silhouette of this tankini resembles a mini dress, offering maximum belly camouflage. The cups are soft and expandable to handle changing breast sizes. Adjustable straps allow you to hike it up for better support.


Wander Agio Maternity Swimsuit Cover-Up

Sexy Mama

This crochet cover-up adds a touch of glam to your poolside look. The tie-bust closure lets you secure the top while the open bottom shows off your bump. It comes in over 20 colors, making it easy to match with your existing swimwear.

Maternity Swimsuit FAQs

Do I Really Need a Maternity Swimsuit?

You don’t absolutely need one if your regular bikinis still fit under your bump. However, maternity suits offer extra length in the torso and gathered sides that prevent the fabric from riding up or digging in, making them much more comfortable for the second and third trimesters.

Can You Wear a Regular Swimsuit While Pregnant?

Yes, especially in the first trimester. As you grow, regular one-pieces may become too short in the torso and compress your belly uncomfortably. Regular bikinis work longer, but you may need to size up the top to accommodate breast growth.

How Often Should You Swim When Pregnant?

Swimming is generally safe and encouraged. Most doctors consider 30 minutes of swimming per day, a few times a week, to be safe and beneficial. Always listen to your body and stop if you feel tired or dizzy.

What Color Swimsuit Is Most Slimming?

Dark colors like black, navy, and charcoal are traditionally slimming. However, pregnancy is a time to celebrate your shape rather than hide it. Patterns and ruching (gathered fabric) can also be very flattering on a bump.

How Do You Size a Maternity Swimsuit?

Stick to your pre-pregnancy size. Manufacturers design maternity sizes to align with your regular sizing while accounting for your bump and weight gain. If you have gained significantly more weight than average or are carrying multiples, you might consider sizing up one step.

What Type of Swimsuit Is Best for Pregnancy?

Tankinis are often the top choice because they offer the coverage of a one-piece but the bathroom ease of a two-piece. However, if you are swimming laps for exercise, a racerback one-piece usually provides the best strap security.

When Is the Best Time to Buy a Maternity Swimsuit?

It is best to wait until the second trimester to buy a maternity suit. By then, your baby bump has popped, and your breasts have likely gone through their initial growth spurt, giving you a better idea of the size you actually need.


The Bottom Line

Our top pick for the best maternity bathing suit is the Ziola Maternity Tankini. It offers a flattering fit for various chest sizes, and the adjustable straps ensure you stay supported. The cut highlights your bump without being restrictive.

Plus, the two-piece design saves you from wrestling a wet one-piece in a tiny bathroom stall. You deserve to feel cool and confident, so grab a suit that celebrates your new shape and jump in.

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Headshot of Jennifer Schlette, MSN, RN

Reviewed by

Jennifer Schlette, MSN, RN

Jennifer Schlette MSN, RN, is a pediatric intensive care nurse at Children's Hospital of New York for the past 14 years. Jennifer also has extensive experience teaching Maternity and Obstetric Nursing, as well as Pediatrics Nursing.