Best Swim Diapers for Baby Girls of 2026

"I love that this swim diaper is reusable, easy to clean, and grows with my child—we adjusted the fit as he got bigger. Even after a big mess, it washed up spotless. We liked it so much, we bought the next size up for his second year!"

"This diaper fits my son perfectly according to the size chart and has been a real upgrade from disposables. It holds in pee outside the water and is a breeze to take off with the snaps. Even after lots of swims in a lake, the inside stayed white, so the outer layer really works! I would definitely buy another and plan to use these until potty training."

"After using these last summer, I’m never going back to disposables. The iplay swim diapers are well made, comfortable, and the snaps are great. My only issue was a minor tagging mix-up with the size—otherwise, they’re fantastic and I’ll be buying more."

"I love that this swim diaper is reusable, eco-friendly, and machine washable. The Aqua Palm Flamingos pattern is vibrant and fun, plus it fits my 2-year-old snugly with no leaks. The pull-up style makes changes a breeze, and the UPF 50+ protection gives extra peace of mind during outdoor swims. I highly recommend it for anyone looking for a reliable and stylish option!"

"This swim diaper is a game-changer for both pool and beach days. The fit is just right for my 20-month-old, and the material is soft and comfortable. I love that it's reusable, saves money, and the colors stay bright after many washes. It's exactly what I needed—cute, functional, and durable!"

"I had concerns about fit since my baby has chunky thighs, but the 3T size fits perfectly and contains everything—even during accidents! It washes clean every time and the colors stay vibrant, even after using bleach. I can't recommend this swim diaper enough for parents looking for something truly dependable."

"I was thrilled with how adjustable and well-made these swim diapers are. My little one is on the smaller side, and they fit her perfectly on the smallest snaps — plus, there's plenty of room for her to grow. The included wet bag with multiple pockets is super handy, and the diapers themselves have great colors and aren't too bulky. I haven't tested them with a big mess yet, but so far, they're a fantastic deal!"

"I've used these for about five months now, and they've performed really well—no leaks, even with a BM in the pool. They're definitely more comfortable and dry faster than disposables, which can get saggy. I love that they're reusable and adjustable, and the wet/dry bag is a great addition."

"The quality is excellent and the price is right, but unfortunately, they didn’t fit my bigger six-month-old, even on the loosest setting. He’s not chubby, just tall and solid for his age. I think they’d be great for an average-sized baby, but we had to return them because they were too snug."

"After trying several brands, I can confidently say these are the best swim diapers! They’re super easy to put on, fit perfectly, and keep everything contained—even those dreaded pool accidents. My favorite part is that they don’t let any wetness escape, and the adorable designs are a huge bonus. I’m sticking with these from now on."

"As a new mom, I didn’t realize how much of a difference a quality swim diaper could make. These are thick, soft, and double-lined, which makes them stand out from others I’ve used. The only thing to note is they do run small, so size up! Still, the comfort and quality are unbeatable."

"I bought this swim diaper for my daughter’s swim lessons, and it’s been fantastic. It fits snugly without being too tight, the adjustable snaps are great for growing kids, and it’s super easy to clean. I love that it’s reusable and eco-friendly, plus the cute patterns make swim time even more fun."

"I bought these for my granddaughter’s swim lessons, and they’ve been absolutely perfect. The adorable flower prints are a big hit, and the adjustable snaps make it easy to fit her as she grows. I’m impressed with how well they wash and how they've held up after several uses. No leaks so far in the pool, and it’s a relief not to buy new sizes constantly. For anyone needing a practical yet cute swim diaper, I definitely recommend these!"

"I was pretty anxious about picking the right reusable swim diaper for my little one, since he was too small for disposables and I wanted something reliable. This three-pack has been fantastic—easy to clean and fits him perfectly with all the adjustment options. The material is water-resistant and keeps things contained at the pool, which gives me peace of mind. The only thing is, if it’s tightened too much it can rub his belly a bit, but it doesn’t seem to bother him. Great quality, cute styles, and we really don’t need more than three!"

"I’ve been using this swim diaper for my 5-month-old and, overall, it’s been good. The many snap buttons provide lots of sizing options, which is great for a growing baby, though I do find the fit a little tricky sometimes. It washes well and hasn’t stained, even with liquid messes, though some leaks are to be expected with swim diapers. I appreciate that I don’t have to keep buying disposables as he grows."

"I've relied on these for three years as a dependable, reusable swim diaper for my toddler. The quality and comfort have never let us down."

"This is by far the best-fitting swim diaper we've tried; it's mostly leak-proof, which gives us peace of mind at the pool."

"I got this for my granddaughter's birthday and it was just right under her swimsuit—not too loose or tight. She had a great time at the pool."

"I was thrilled with the adjustable sizing and comfy fit for my 17-month-old. The snaps on the sides and front make it easy to get just the right fit, and the adorable patterns are a bonus. Super convenient for swim lessons, and much better than regular pull-up swim diapers. Putting them on and taking them off is a breeze!"

"We bought these for our daughter who has outgrown disposable swim diapers due to developmental delays. The customizable fit really works for her as she grows. We were able to use one right away and loved it, but the second diaper had a damaged snap so it couldn't be used. Overall, great adjustability, but check both diapers upon arrival."

"After a pool accident, I can confirm this swim diaper contained everything—even diarrhea—without leaking into the pool. The size adjustability was perfect for our big 18-month-old, and clean-up was simple with a soak and machine wash. Highly recommend for peace of mind at the pool."

"I've been using this swim diaper for over a year and a half in my baby's swim classes. The quality is fantastic, the fit is secure, and the design is adorable. It takes a little practice to put on, but that's what makes it so effective. No leaks, easy to clean, and my little one finds it comfortable. Highly recommend!"

"I chose this instead of disposables for my 3-month-old and it's worked out really well. The snug fit around the legs provides great protection, and my baby seems comfortable. It's a bit tight to get on, as expected, but the material is durable and holds up through washes."

"This is hands down the best swim diaper we've tried. It’s easy to get on and off, holds up well in the wash, and the colors stay vibrant. I’ve bought different sizes as my child grows, and each one fits perfectly. Super effective and recommended by our swim teachers."

"I bought these for my daycare kids, and I'm really impressed by the thick, well-made material and how they held up after several washes. Both my 3-year-old girl and 3.5-year-old boy fit comfortably in the size 5. They're super cute and seem comfortable for the kids. I highly recommend them."

"These swim diapers have been our top choice! My son has been in swim lessons since he was 5 months old, so we've tried many brands. They wash great, never leak, and fit true to size. They're also very easy to put on and take off. I definitely recommend them."

"This is my second time buying these because my child outgrew the first set—they're that good. We had a couple of poop accidents during swim class, and not a single leak! The diapers are easy to wash, don't stain, and remain odor-free even after several uses. The fit is snug and comfortable, plus the designs are adorable. I highly recommend them for reliability and cuteness."

"This swim diaper fits my toddler perfectly, is super comfortable, and hasn't leaked at all. I'm really happy with how well it works and how snug it feels."

"Switching to this reusable diaper for swim class has saved us a lot compared to disposables. After class, we use the wet clothes ringer and it’s almost dry by the time we get home. The material feels thick and well-made, and our toddler isn’t dripping everywhere after swimming, which is a big plus."

"I read reviews ahead of time and decided to size up (24 months for my 12-month-old), which was the right call since these do run small. They fit great, but after washing and drying one pair, I noticed air gets trapped inside, making it a little awkward for my daughter in swim class. The unwashed pair works perfectly, though."