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Best Swim Diapers of 2024
Updated on
January 19, 2024

Best Swim Diapers of 2024

By Babylist Team
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Best Swim Diapers of 2024.
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Best Swim Diapers of 2024

Glistening lakes, the seashore and cool pools beckon to kids and their parents on hot summer days. Don’t let having a little one in [diapers](/hello-baby/best-disposable-diapers “Babylist Best Disposable Diapers guide:) hold you back from getting in the water. Grab your sun protection, swimsuit and swim diapers and you’re ready to go!

Do You Need Swim Diapers?

If your child isn’t potty trained and they want to dip toes (and more) into a public body of water, you need swim diapers. Ordinary diapers won’t work. The material that makes regular diapers so absorbent also turns them into a waterlogged anchor around your child’s waist once they are submerged in water. Not only is their absorbing action rendered useless once they soak up water, but their weight makes them super saggy to the point of falling off. And they definitely can’t hold anything inside once they’re stretched out. Swim diapers are designed to withstand water and contain solids. They aren’t meant to absorb. Yep, that means pee will pass through to the water. But swim diapers should keep number twos inside, eliminating what public pools fear most: fecal contamination. (Everyone out of the pool, closed for days or weeks as it’s drained and refilled, etc.)

You may be thinking, “What about when my child is out of the water?” Because there is no absorbency, you’ll have to change your baby into a regular diaper right after swimming. For some reusables you can purchase absorbent inserts for the diaper while they toddle around on land.

Note: Swim diapers aren’t designed for newborns whose stools tend to be liquidy (until they start eating solid food). Lacking an absorbent layer, they just can’t contain newborn poops. The same goes for children with diarrhea. They should not be allowed to swim in a public body of water. If you want to introduce your baby to water before two months of age, try filling up the tub at home or using a kiddie pool rather than heading to the community pool.

What Type of Swim Diaper is Best?

Remember that swim diapers need to have a snug fit to contain poop, so they will probably be tighter than your everyday diapers. There are two types of swim diapers: disposable and reusable, each with their own advantages. Disposables are cheap and offer convenience, but they tend to sag and are more prone to letting something slip out.

Reusable swim diapers that have Velcro or snaps at the side usually offer a better fit, but are more expensive and high maintenance. After changing your child out of a reusable diaper, you have to flush the contents down the toilet, package the dirty reusable to take home, and then rinse it and run it through the washing machine. Also, since babies grow pretty quickly, they might grow into a larger reusable size before the summer is over. Consider how quickly your little one is growing before investing in a reusable swim diaper.

How Does This Work at the Pool?

If public pools allow diapered children to enter at all, their rules may differ. Many require kids to have two layers. A disposable diaper along with a reusable or swim shorts on top can work, or some allow a reusable diaper underneath with swim shorts on top. Many parents find that disposable on bottom and reusable on top is the best defense against spillage anyway.

Best Reusable Swim Diaper

Why We Love It

These reusable swim diapers come in a bunch of cute patterns and have a light absorbency (i.e. will catch a tiny bit of urine outside the pool). They’re also machine washable.

Keep in Mind

Be sure to buy the version that has snaps at the side since this brand also makes a pull-up style reusable swim diaper. Also, this brand runs small, so you may want to size up.

Additional Specs
Sizes 0-6M to 6-12M

Best Disposable Swim Diapers

Why We Love It

Low cost and featuring tear-off sides for removal, these disposables are a great, no-hassle option.

Keep in Mind

Getting these disposable swim diapers on isn’t as easy as getting them off. The pull-up style can be frustrating as it sticks to sweaty, sandy kids.

Additional Specs
Sizes Small (13-24 lbs) to Large (31+ lbs)

Most Comfortable Swim Diaper

Why We Love It

This reusable option has plenty of features we appreciate including a waterproof outer layer and a soft TENCEL lyocell inner lining. They also have a wide elastic back plus leg elastics that help contain solids and prevent leaks.

Keep in Mind

Since the fit is adjusted via a drawstring at the waist rather than with snaps, be sure to stretch the waistband as loose as it’ll go before pulling it down your baby’s legs so you lessen the mess.

Additional Specs
Sizes Small, Medium, Large and X-Large

Best Pull-Up Swim Diaper

Why We Love It

We love Primary’s clothes and swimwear for their basic-but-colorful designs, and these swim diapers are no exception. Made with an outer layer of nylon and elastane, and a concealed water-resistant lining that contains the mess without swelling, these also have a snug fit around the waist and legs. They also have UPF 50.

Keep in Mind

These swim diapers don’t have snaps, so you’ll have to pull them off.

Additional Specs
Sizes 3-6M to 3T

Best Swim Diaper that Grows with Baby

Why We Love It

Two words: adjustable snaps. This reusable swim diaper has lots of snap closures at varying levels for a bunch of different fits in one (this diaper fits kiddos from eight pounds all the way up to 36 pounds!), and you can easily readjust them to fit a growing baby or size them down for a new addition. Soft mesh inside and a trim fit means they’re super comfortable for your little one and they hold all the messy stuff in.

Keep in Mind

Since one size fits all with this diaper, the smallest babies will need to have all of the snaps fastened, which leads to bunching and bulking fabric and can make it a little difficult to fit the diaper under swim clothes.

Additional Specs
Sizes One size fits 8-36 pounds

Best Built-In Swim Diaper Swimsuit

Why We Love It

These swim trunks have a built-in swim diaper and help your little one move freely without feeling weighed down. The whole suit is machine washable, and no other diaper is necessary—which saves money and is super convenient. Another great feature? The UPF 50+ fabric offers much-needed sun protection. Pair these trunks with a rash guard, sunnies and sun hat and your little one is ready for a day at the beach or pool. We also love the one-piece swimsuit option.

Keep in Mind

Since there are no snaps, changing your baby if they poop in the swim trunks can be tricky.

Additional Specs
Sizes 6 months-4T

Choosing what’s right for you

Since many families use both disposable and reusable swim diapers together, you might want to purchase both and see how it goes. You may find the twofer system works great or that one or the other causes chafing or slides right off your baby’s bum. Finding the perfect swim diaper for your little one will be worth it for all the splashing, smiling fun this summer.

This information is provided for educational and entertainment purposes only. We do not accept any responsibility for any liability, loss or risk, personal or otherwise, incurred as a consequence, directly or indirectly, from any information or advice contained here. Babylist may earn compensation from affiliate links in this content. Learn more about how we write Babylist content and review products, as well as the Babylist Health Advisory Board.