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Updated September 2020
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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
Bottom line
Pros
Cons
Best of the Best
Sansi Baby One-Piece Swimsuit
Sansi
Baby One-Piece Swimsuit
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Most Versatile
Bottom Line

A quality swimsuit in a variety of sizes and designs for girls and boys.

Pros

Available in sizes 3 to 18 months in 8 different designs for both girls and boys. Made from quality fabric and is easy to take on and off. Comfortable to wear and play in.

Cons

Doesn't have any snaps at the bottom for diaper changes.

Best Bang for the Buck
Storeholic Baby Boy One-Piece Swimsuit
Storeholic
Baby Boy One-Piece Swimsuit
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Bargain Pick
Bottom Line

Affordable swimsuits for babies in a variety of cute designs.

Pros

Features 3 different designs in 6 to 12 months up to 3T to 4T. Dries quickly and is easy to play in. Non-chemical sun protection for those with sensitive skin (sun protection via tight weaving of fabric).

Cons

Material is thin and the suits run small.

RuffleButts Girls One-Piece Swimsuit
RuffleButts
Girls One-Piece Swimsuit
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Most Stylish
Bottom Line

A cute, quality line of swimsuits that will last through many trips to the beach.

Pros

Comes in sizes from newborn to 2T in 7 different designs. Includes 50 SPF for sun protection. Features snaps at the bottom of the suit to make diaper changes quick and easy.

Cons

The suits seem to run a little small in size.

HUAANIUE Boy One-Piece Swimsuit
HUAANIUE
Boy One-Piece Swimsuit
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Wide Variety of Designs
Bottom Line

A cute line of swimsuits that are well-made and feature bright colors.

Pros

7 different designs available in sizes 0 to 6 months up to 5T to 6T. Made of quality fabric and features bright colors. Zipper front makes it easy to take on and off and dries quickly.

Cons

No bottom snaps for diaper changes and sizes run small.

upandfast Baby/Toddler One Piece Swimsuits
upandfast
Baby/Toddler One Piece Swimsuits
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Includes Sun Cap
Bottom Line

Cute and functional infant swimsuits for girls and boys that include a sun cap.

Pros

Features 11 different designs for girls and boys in sizes 3 to 6 months up to size 5T. Has a zipper closure and includes a free matching sun cap. Made of quality material that includes 50+ SPF.

Cons

Does not have snaps at the bottom for diaper changes.

HOW WE TESTED

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

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Models
Considered
60
Consumers
Consulted
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Hours
Researched
Category cover

Infant swimsuits are available in a variety of designs and styles, but many cover arms and legs to also provide sun protection. Some companies offer gender-neutral designs, while others separate suits by popular boy and girl designs and colors, but pretty much all sizes fit the same, so it's a matter of personal preference on what look your baby likes best. Most have a zipper closure to make changing easier and some have snaps at the bottom so you can change a diaper without removing the entire suit. Many also have built-in SPF for extra sun protection. Keep in mind that with any infant swimsuit, your child will still need sunblock to protect any skin that is still exposed to the sun.

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