Best Baby Swimsuits of 2025

We loved testing the Swimzip because it genuinely solves the “wet swimsuit struggle.” The full-length zipper runs from the neck all the way down the leg, making it incredibly easy to put on and take off, even when the suit is wet.

The material is 100% polyester with a UPF 50+ rating, blocking 98% of UVA and UVB rays. We found it held up beautifully against salt water and chlorine without fading or losing elasticity. The long sleeves and legs offer maximum coverage, so you use less sunscreen.

If style and safety are your top priorities, The Tiny Universe delivers. This suit offers comprehensive body coverage with a blend of polyester and spandex that moves comfortably with active crawlers and walkers.

We appreciated the zipper guard on the back, which prevents the hardware from pinching delicate skin. While it performed well against rough play on the sand, the lack of leg snaps means you have to take the top down for diaper changes, which can be tricky with a wiggly baby.

RuffleButts is famous for their signature rear ruffles, but this set is also highly practical. The two-piece design completely eliminates the hassle of diaper changes; you just pull down the bottoms.

The long-sleeved rash guard offers great sun protection for the upper body. We love that you can mix and match these pieces with other swimwear. Just be aware that the ruffles, while adorable, tend to trap sand, so give them a good shake before washing.

Carter’s is a staple for a reason. These Simple Joys sets, exclusive to Amazon, offer reliable sizing and great value. We like that the drawstring waistband is fully functional, not just decorative, allowing you to get a secure fit on slimmer babies.

The fabric dries fast and provides UPF 50+ protection. Since they come in sets, they are perfect for keeping a spare dry outfit in the diaper bag for after the pool.

If you are heading to a public pool, preventing a “Code Brown” is priority number one. The Happy Nappy is designed specifically to contain solids without the need for a disposable swim diaper underneath.

The wide bands around the waist and thighs form a secure seal that is surprisingly comfortable. While it doesn’t offer upper body sun protection, it is the gold standard for hygiene in swim classes or indoor pools.

This suit is adorable and practical. The animal themes include matching hats with beaks or ears, which makes sun safety fun for toddlers who usually resist hats.

The zipper extends down the torso for decent access, though not all the way down the leg. The fit is generally snug, so we recommend sizing up if your baby is between sizes or wears bulky swim diapers.

For a poolside photoshoot, this 1950s-inspired floral suit is unbeatable. The halter neck design eliminates arm-hole struggles, making it easy to slip on.

While it is high on style, it is lower on sun protection. The back, shoulders, and arms are exposed, so you will need to be diligent with sunscreen or stick to the shade. It’s perfect for a quick dip or a shaded baby pool.

This Upandfast set covers all the bases by including a sun hat with a rear neck flap, offering excellent protection for that vulnerable spot on the back of the neck. The suit itself is stretchy and soft.

The major drawback is the lack of snaps at the bottom. You have to take the entire suit off to change a diaper, which is a significant inconvenience for younger babies who need frequent changes.

Versatility is the selling point here. This set looks like a standard shorts-and-tee outfit but is made of quick-dry swim material. Your toddler can go from the sprinkler to the lunch table without needing a wardrobe change.

The set includes shorts, a shirt, and a hat. The detailing, like 3D dinosaur spines, is a hit with kids. Just note that the shorts are cut quite short, so double-check the fit if you are using bulky swim diapers.

This one-piece strikes a balance between coverage and convenience. Unlike many one-pieces, this RuffleButts suit features snaps at the bottom for easy diaper access. The long sleeves protect the arms, while the cut remains stylish.

The fit is very snug, which is great for safety but can make it a wrestling match to get on a wiggly toddler. We recommend stretching the neck opening gently before the first wear.

This set is all about options. It includes swim shorts, a sleeveless tank, and a long-sleeved zipper jacket. You can layer up for full sun protection or strip down to the tank for indoor pool time.

The jacket zipper is robust, and the ability to adjust layers based on the weather is a huge plus. However, wearing all three layers might be too warm for very hot days, so monitor your baby’s temperature.

Green Sprouts simplifies your swim bag by building the reusable diaper right into the suit. The patented triple-layer protection prevents solid leaks effectively.

Because the diaper is integrated, the fit around the legs and waist is intentionally tight. This is necessary for containment but can be tricky to pull off if a mess occurs. It saves you money on buying separate swim diapers, which we love.

This Bonverano suit offers great value with a matching hat included. The zipper has a protective fabric strip inside to prevent skin irritation, a small detail that prevents a lot of tears.

The hat stays on well thanks to its shape, avoiding the need for annoying chin straps. While the patterns are vibrant and fun, the alignment of the print across the seams isn’t always perfect, if you are particular about aesthetics.

If you use cloth diapers, you know the bulk struggle. This set is designed with a generous cut in the bottoms to accommodate reusable swim diapers comfortably.

The rash guard top provides standard UPF protection, and the separates make bathroom breaks easy. The sizing can be a bit odd; you may need a larger top and smaller bottoms depending on your baby’s build.

With over 30 designs ranging from sharks to unicorns, Uideazone has a print for every personality. The fabric is lightweight and stretchy, making it comfortable for all-day wear at the beach.

It is a budget-friendly option, so the stitching isn’t as robust as premium brands. There are no leg snaps, so you have to remove the suit for diaper changes. We recommend sizing down, as these tend to run large.

Gerber brings their baby-clothes expertise to swimwear with these cute two-piece sets. They are machine washable and durable, handling the dryer better than most swimwear.

The fit is the main challenge here. The bottoms are cut very generously (likely to fit over diapers), but the tops are somewhat short. If your baby has a long torso, the shirt might ride up and expose their belly to the sun.

Safety is the focus of this Bonverano suit. The fabric is OEKOTEX-100 Certified, meaning it is free from harmful chemicals. It also features a unique photo-reactive logo that changes color when UV rays are strong, serving as a reminder to reapply sunscreen or seek shade.

While the suit is fantastic, it requires hand washing to maintain its protective qualities. If you throw it in the machine, you risk damaging the UV coating.

For boys, these trunks are a solid all-in-one solution. They combine a board-short look with the functionality of a Green Sprouts reusable diaper.

The internal diaper is very effective at containment, but this means the waistband is tight and non-adjustable (the drawstring is decorative). If you have a chunky baby, the waist might dig in, so check the size chart carefully before ordering.

This SwimZip option offers a jacket-style top with a full front zipper, which is much easier to put on a baby than pulling a tight rash guard over their head.

The designs are feminine and detailed with ruffles and pompoms. However, the bottoms have a “big kid” cut, meaning they are higher on the hip. This often leaves the swim diaper visible, which isn’t a functional issue but looks a bit mismatched on a baby.

If you need a spare swimsuit that doesn’t break the bank, this Amazon Essentials set is a decent backup. The prints are cute, and the fabric offers UPF 50+ protection.

However, sizing is a significant issue. The suits run extremely small, sometimes two full sizes smaller than labeled. Also, the neck opening is tight, which can make dressing a struggle. We recommend buying this only if you size up significantly.