20 Best Baby Swimsuits of 2024

We were stoked to try out the Swimzip swimsuits because they are labeled as chlorine and salt water resistant, and they didn’t disappoint. After a month of use, in and out of salt water, fresh water, and chlorinated pools, the suit still looks like new.

A long zipper reaches the bottom of the leg seam, which makes diaper changes so easy. The 100% polyester material has a 50+ UPF rating, so you don’t have to worry about sun exposure.

The only problem we found is that the sizing runs from 0–6 months and 6–12 months, making sizing selection tricky for some.

For full-body protection, it’s hard to beat this UV protection suit from The Tiny Universe. The suit is made from 84% polyester and 16% spandex, giving it enough flexibility to move with your child without being so loose as to chafe.

There’s a durable YKK zipper down the back with a zipper guard to ensure it doesn’t touch the skin.

We found it stood up well to a lot of crawling on the sand and even older kids climbing on rocks. It’s easy to wash, and quick to dry.

Developed by a US mom, these Rufflebutts two-piece sets combine adorable swimsuit bottoms with the cutest layers of ruffles with matching rash-guard tops that are available in sizes from three months to ten years.

We love the fact that the bottoms are easily removable for diaper changes and that buying two or more sets for a holiday means you can mix and match tops and bottoms.

Carter’s Simple Joys baby swimsuits are available exclusively on Amazon. They are the same standard and fit as any Carter’s swimsuits you can buy in the store, so sizing isn’t a problem.

We particularly like that you can buy a couple of these two-piece sets and mix and match them. The shorts can be made snug because the drawstring runs all around the waist, not just at the front like some other examples.

When it comes to swimming indoors, you may not want to bother with a full-coverage swimsuit for your baby.

If you’re looking for baby swimwear for indoor swimming, we recommend Happy Nappy swim diapers because they are colorful, well-fitting, and most importantly, prevent embarrassing accidents in the pool by holding any poops in.

A soft but snug waistband and leg cuffs hold this swim diaper in place, but they aren’t so tight as to get uncomfortable or leave elastic marks.

This cute swimsuit comes with a matching wide-brimmed sun hat. Depending on which color you chose, the hat comes with bear ears or a duck, penguin, or flamingo bill with eyes, making these suits a charming swimwear option.

The UPF 50+ suit has long sleeves, knee-length legs, and a zipper that runs halfway down the trunk.

If you’re looking for a gorgeous floral swimsuit with a 1950s retro vibe, this is the option for you. A simple halter neck cut makes this a breeze to get on and off, which is ideal for easy diaper changes, and you never have to wrangle wriggly arms through any stretchy fabric.

These light, stretchy swimsuits come in a variety of styles. Choose from a selection of full or mid-length arm coverage and knee-length leg coverage. The matching hat shields babies’ faces from the sun while providing neck coverage in the back

There are no lower snaps for easy diaper changes, so the entire swimsuit needs to be removed for diaper changes.

Also, if the hat gets wet and dries while the rim is folded, it will remain bent. This is easy to fix by soaking the cap and leaving something heavy on the rim while it dries.

This three-piece swimwear set consists of shorts, a t-shirt, and a matching hat. Choose from a dinosaur, crab, or shark set, each with unique detailing. For example, the dinosaur has three sweet, soft spines running down the back of the shirt.

We particularly like that this set is made with quick-dry fabric. It’s suitable for playing in the water but looks just like a regular t-shirt and shorts. It can be worn for shopping, eating out, or any other off-beach activities.

The RuffleButts brand makes a range of coordinating mix-and-match swimwear for babies. This makes it easy to dress your baby in a swimsuit at the beach and throw on some shorts or a skirt to create an outfit without having to do a complete clothing change.

Although this swimsuit pulls on over the head and is held snug with a zipper at the back, there are snaps at the bottom, making it easy to do a quick diaper change without having to remove the entire suit.

This unique swimsuit includes a tank top and a long-sleeved jacket-style zippered top to provide flexible coverage options. You can dress your little one in the shorts and tank top for indoor swimming or when you’re in the shade or add the rash guard jacket for full sun protection.

This trio can also be worn as an outfit away from the beach, allowing you to get more use from it.

Having to buy or use swim diapers under a baby’s swimsuit can be costly and annoying, which is why we are big fans of this swimsuit by Green Sprouts.

This baby swimsuit includes a reusable cloth diaper that is built right into the design. The legs and body fit snuggly, so if your baby poops while in the water, none of the solid waste will escape the suit. However, it is not waterproof, so if you’re holding your baby and they pee, you will get wet.

An excellent swimsuit for the price, this 50+ UPF one-piece sunsuit has mid-length sleeves and knee-length bottoms and comes with a matching hat.

A fabric strip on the inside of the suit, behind the zipper, prevents your baby’s delicate skin from being irritated.

The matching hat includes a neck guard for better sun protection and fits snuggly on baby’s head. We didn’t have any issues with it falling off.

If you’re a cloth diaper user, you know how it can be challenging to find reusable swim diapers that fit well under a swimsuit. That’s why this baby swimsuit set by Green Sprouts is a good option for cloth diaper users.

The cloth diaper bottoms are simple to remove, and the rash guard tops (that won’t fade in saltwater) provide protection from the sun. Both pieces come in vibrant-colored modern designs, unlike anything else we’ve tried.

An affordable option with many pattern choices, this rash guard swimsuit is from Uideazone is an excellent choice if you love variety. Choose from over 30 options for boys or girls. If you can’t decide, the affordable price tag makes it easy to buy more than one.

These adorable baby swimsuits tend to run a little big, so you can choose to size down, or purchase the correct size to get extra use out of them.

These sweet two-piece baby swimsuits from Gerber are adorable. Choose from three cute fruit or ice cream prints. And because they’re machine washable and dryable, these swimsuits are straightforward to care for.

However, the bottoms run pretty large, even with a diaper under them. And the tops tend to ride up a little on chunkier babes, leaving bellies exposed to the sunshine.

This Bonverano swimsuit is made with OEKOTEX-100 Certified Fabrics that are independently tested and rated free from substances harmful to human health ⁽¹⁾.

The swimsuit itself has undergone testing against AS/NZS 4399 — a sun-protection standard against which items are independently tested. There’s even a photoreactive logo that turns purple if the sun is too intense, alerting you to move your child into the shade.

These swimming trunks with a built-in swim diaper are an excellent option for little ones going to the pool or just playing in the yard.

The diaper section is snug around the legs and waist to keep in any messes. This can cause an issue with chunkier babies as they can be too tight for comfort. Going up a size will help with the tightness, but then the shorts will be very long.

Instead of the typical t-shirt or long-sleeved top, this rash guard set from Swim Zip has a jacket-like top with a full-length zipper down the front. This makes it easy to dress and undress your baby.

These cute swimsuits include fun details such as ruffled layers, flowers, or lacy pompom trims.

However, the higher cut of these swimsuit bottoms seems to be designed more for older children who don’t wear swim diapers. For babies, the cut exposes their swim diaper and looks a little unusual.

This simple, two-piece rash guard set from Amazon comes in a variety of colors and prints.

Although these sets are cute, they would be more functional if they maintained standard sizing for babies and toddlers. We found that even on a petite three-month-old baby, the nine-month-old size was just about the right fit.

Apart from the sizing issues, we found that the fabric had a chemical smell, which dissipated after a short while of being out of the packaging.