The 8 Best Swim Diapers

Make pool time stress-free with these picks

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Our Top Picks
The three-layer design includes a wicking liner that helps to prevent a diaper rash from developing on your baby's bum.
Aside from the great price, the disposable feature means no sloshing yucky diapers in the toilet while missing out on fun.
The diaper has a waterproof outer shell and the inside is a premium soft polyester mesh designed for easy wash.
These 2-in-1 swim trunks from Green Sprouts feature a built-in swim diaper, making them perfect for your toddler.
This reusable swim diaper is soft like butter and highly absorbent inside that will leave your little one rash-free
The outer layer is made of 80 percent recycled nylon and 20 percent spandex with a UPF 50 rating to keep them protected
The material is high quality and made of soft, thick neoprene that provides a flexible fit
Offered in three different sizes and woven from pure cotton for extreme comfort, your sweetie will be comfy and protected

Getting your baby in the water (and enjoying it) means knowing what baby swim gear is you’ll need. Of course, a swim diaper is at the top of that list for any child who isn’t potty trained.  Regular diapers don’t work in water because they are designed to absorb liquids, including pool water.

Available in both a disposable and reusable option, the best swim diaper for you is whichever is most convenient for your lifestyle or more likely, right for your budget. A trustworthy and comfortable swim diaper for your kiddo can ensure a day in the water is fun for the whole family and accident-free!

Below we review our favorite swim diapers for babies, toddlers, and parents’ convenience. 

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Best Overall: i play. by green sprouts Snap Reusable Swim Diaper

You can’t go wrong with i play Snap Reusable swim diaper. Between the easy-lock snaps on one side that make taking off and on a breeze and the high-quality construction, these take the prize for best overall. 

The three-layer design includes a wicking liner that helps to prevent a diaper rash from developing on your baby's bum. The inner absorbent layer helps protect against messes when your little one is outside of the water while the waterproof outer layer provides secure protection. These are easy to use and affordable enough so that you can stock up.  

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Best Disposable: Huggies Little Swimmers Disposable Swimpants

Looking for a swim diaper that won’t blow your summer budget or need to be washed while on vacation? Try Little Swimmers by Huggies. You can buy a whole package of these disposable swim diapers for about the price of one or two reusable swim diapers.

While most swim diapers, disposable or otherwise, don't effectively absorb urine, these make number two changes super easy thanks to the easy-open sides. The disposable feature means no sloshing yucky diapers in the toilet while missing out on the fun in the sun—just throw the soiled diaper away and start fresh.

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Best Budget: Beau & Belle Littles Nageuret Reusable Swim Diaper

The Nageuret swim diapers are adjustable from newborn to size 5 making them the only swim diaper you will ever need. The diaper has a waterproof outer shell made of polyester cloth with one-of-a-kind patterns, and the inside is a premium soft polyester mesh designed for easy wash. The unique waterproof exterior and soft interior make for a protective and comfy swim.

With a superior adjustable fit, this swim diaper is great to have on hand for your toddlers that aren't quite potty trained and need added protection. If you are unsatisfied this family-owned business will refund your money and send you a new diaper.

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Best Trunks: Green Sprouts Green Sprouts Classic Trunks with Built-In Reusable Swim Diaper

swim diaper trunks

These 2-in-1 swim trunks from Green Sprouts feature a built-in swim diaper, making them perfect for your toddler who wants to hit the beach like a big kid. They are built with lightweight material to move freely and not feel weighed down while they're enjoying swimming

The triple-layer design offers a wicking layer that helps prevent diaper rash, the inner absorbent layer protects against accidents outside the pool, and the last outer layer while being waterproof, is snug-fitting around the waist and leg. We like this option if you are looking for an alternative to the standard diaper look.   

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Best Reuseable: Charlie Banana Baby Reusable and Washable Swim Diaper for Boys or Girls

We love the Charlie Banana reusable swim diaper for its soft like butter hand feel, waterproof outer layer and highly absorbent inside that will leave your little one rash-free. With four different sizes to choose from, you'll find the right fit for your little swimmer.

The wide elastic back paired with the adjustable drawstring waistband creates a snug yet comfy fit. Parents also rave about the 2-in-1 system working as underwear while potty training a toddler. These come in four different sizes and have a functional drawstring. 

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Best for Toddlers: Primary Primary Swim Diaper

primary swim diaper

This reusable diaper by Primary is simple and breathable, feeling less bulky than a regular diaper and a top choice to be worn all day. The outer layer is made of 80 percent recycled nylon and 20 percent spandex with a UPF 50 rating to keep them protected while they splash around in the water and sun. 

Fans of this simple swim diaper rave about the quality construction, easy to clean material and they are able to them pull off and on their kid with no issues.

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Best Full Protection: Splash About Happy Nappy Swim Diaper

The Splash About swim diaper’s patented design will keep your mind at ease if you are worried about fecal leaks. For your youngest swimmers, this diaper slips on to your little one with ease and keeps them dry.

The material is high quality and made of soft, thick neoprene that provides a flexible fit. The unique ribbing on the fabric around the waist and thighs acts as a way to stop fecal leaks. It can be worn on its own or with the Nappy Wrap and liners for easy cleaning that can be purchased separately.

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Best Diaper Cover: Pottery Barn Kids Pottery Barn Nautical Whale Diaper Cover

swim diaper cover

If you aren’t going to fully immerse your child in water or just want a cute cover for a disposable swim diaper, this diaper cover from Pottery Barn is super cute and budget-friendly. Offered in three different sizes and woven from pure cotton for extreme comfort, your sweetie will be comfy and protected. Because the diaper cover is made to be water-resistant, we recommend wearing a swim or regular diaper underneath.

Final Verdict

Before purchasing a swim diaper check the size and weight limits. Think about how easy it will be to pull off and on your kid when they are sweaty, wet, and have a soiled diaper. Diapers that have side openings can make life a lot easier for changes.

If you swim often, save money and go with the i play. By Green Sprouts Snap Reusable Swim Diaper (view on Amazon). If not, the Huggies Little Swimmers Disposable Swim Diapers (view on Amazon) are highly reviewed and easy to grab at any drugstore.

What to Look for When Buying Swim Diapers

Functionality

The basic function of a swim diaper is that it withstands water while containing solids. Everything else is a bonus. Think of what features might be most important to you. Maybe you want snaps on the sides for ease of pulling off and on, full protection from a diaper like the Splash About Happy Nappy, or a diaper you can toss after you swim.

Fit

Finding a swim diaper that fits your little one the best may involve a bit of trial and error. In order for the swim diaper to do its job, the should fit more snugly than a regular diaper. Check your child’s regular diaper size and weight for guidance. Features such as the waistband or adjustable snaps might mean a diaper can fit between sizes or as your child grows.

Price

You may want the most basic swim diaper that does the job. Longterm, a diaper that grows with your kid is a one-time purchase and is the most cost-effective option. Do the math on what makes the most sense for your lifestyle.  

FAQ

What is a swim diaper?

Unlike a regular diaper that absorbs liquid, a swim diaper is designed to contain solids and let the liquid flow through like a swimsuit.  Swim diapers allow your tot to hang out in the water without having to walk around with a heavy, soggy diaper. There are both disposable and reusable options to decide from.   


Do you have to put a diaper under a reusable swim diaper?

You do not have to put a diaper under a reusable swim diaper unless the public pool you are swimming at requires both layers. We would recommend using a disposable swim diaper underneath if need be, as a regular diaper will absorb all the water and become very heavy to swim with.

Why Trust Verywell Family?

Deanna McCormack is a copywriter and marketing professional who writes product reviews for parents and families. She lives with her two kids under 3 in sunny Arizona where they swim almost every day of the year. She loves the Primary Diaper for her toddler because it makes him feel ‘big’.

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