Best Swim Diapers for Baby Boys of 2025

"I find these swim diapers work great for the pool. My daughter has never leaked out when she goes number 2. However, they don’t hold up well if she pees. They fit perfectly and seem very comfortable. She loves being in the pool, so she sometimes goes through two a day depending on how long we’re in there."

"I absolutely love these swim diapers! They are soft and stretchy, without any sharp or hard pieces like other brands. My only suggestion is to add a marking to identify the front and back, as sometimes my child's butt cheeks hang out a little. Overall, they are durable and easy to use."

"These swim diapers are fantastic for my kids! I use them for both my toddler and my baby, and they never have a blowout. The medium size fits perfectly for my 2-year-old and my 9-month-old. I just wish I had found these sooner!"

"My niece is thrilled with these! Her son is taking swimming lessons, and she appreciates not having to buy a bunch of costly disposable swim diapers."

"Excellent quality and zero leaks!!! I loved them, and the price is a great bonus!!!"

"I got these for my potty training son while on vacation so I didn't have to purchase regular swim diapers. These are cheaper and do the same thing. Plus, they're cuter! He enjoyed the beach-themed prints. They were easy to put on and hold solids well."

"I bought this for my 6-month-old's first pool day and was not disappointed! The designs are adorable and they worked extremely well. They stayed on while he floated for about an hour, needing no adjustments. The material is thick and durable. They were extremely easy to wash and I felt comfortable with how they fit around his chunky thighs. I highly recommend these bright, vibrant, and durable swim diapers!"

"These are super great! The snaps are very strong and adjustable to any size. I am a cloth diapering mama, so I’m a little picky about strong snaps and a good fit. These were well-made for swimming! All swim diapers are mainly for keeping in poop. That being said, I would recommend keeping your baby in a regular diaper until you are ready to get in the water, and then put these on. These are great and held poo in at the waterpark and pool. I think that speaks volumes!"

“I absolutely love this swim diaper! The quality is fantastic and it fits really well. It's a must-have for any water activities we've done, like swim lessons and splash pads. My son is slim at 14 months, so they feel a bit tight, but I believe that’s part of their design.”

“These swim diapers are a game changer for us! They fit perfectly for my son, who usually wears 2T. I purchased a 4T size, and it works wonderfully for the pool and beach. They hold everything in, and cleaning them with a hose is super easy!”

“I was really excited about the butterfly print, but unfortunately, the fit was not great. I ordered a 12-month size for my 9-month-old, but it was so tight that it left marks after just a few minutes. I appreciate the recommendation from a friend, but I’m hesitant to buy another one.”

"I was really disappointed. The snaps on the side rubbed on my son's skin and caused a big red mark. We even sized up, so it wasn't because the diaper was too small."

"I recently got the Nageuret Reusable Baby Swim Diapers in the Sea Friends design, and they exceeded my expectations! These swim diapers are adjustable to fit a wide range of sizes, making them perfect as my little one grows. The material is soft, breathable, and waterproof, keeping my baby comfortable while swimming. Cleaning them is a breeze — just a quick wash, and they're ready to use again. I highly recommend these for any parent looking for a reliable, reusable swim diaper!"

"We decided to try a reusable swim diaper for our son since we don’t go to the pool often enough to justify disposables. We found this diaper recently and loved it! The design is adorable and it seems well-made. It fits perfectly with room to grow. We tested it in the bathtub, and it did great! I would definitely recommend this diaper to others!"

"My kiddo is nearly three now, and I've added a few more of these amazing diapers to our collection. They have been subjected to chlorinated pools for two years and still fit great. The customer service is absolutely fantastic; they really go above and beyond. I've been using this diaper for about five months, and its durability is impressive. I expect it will last for at least another year or two!"

"I've bought these swim diapers multiple times for my kids, and they are simply the best! I wish I had known about them earlier. Unlike disposable swim diapers, these hold everything in, giving me peace of mind while my kids swim. They're affordable, made of great material, and come in many color options. Just a heads up, they do tend to run small."

"This swim diaper is our go-to! We've tried several sizes, and it always fits well and does the job without any accidents. I would definitely recommend it to other parents."

"I got a 3T for my son, who usually wears 18m-2T, and it was quite snug on his thighs. I'm really glad I decided to size up! Overall, it’s a solid product for swim time, just keep in mind to check the sizing."

"I needed a swim diaper for my toddler's lessons, and this one fits perfectly over his swim diaper. No leakage issues during lessons, even after several pees. Highly recommend!"

"I absolutely love this swim diaper! No snaps to fuss with, just slip it on, and it fits snugly while allowing my little one to move freely. Perfect for swim class!"

"We were required to buy this brand for our swim school, and I was hesitant at first since we had another brand. However, this one is much more comfortable and easier to manage. So glad we switched!"

"I’ve had these swim diapers for my daughter since she was six months old, and now at 16 months, they still fit perfectly due to their adjustable design. They hold everything they need to, and I love that they are machine washable. No wear and tear issues at all. Overall, they are very sturdy, and I would definitely buy them again!"

"I was tired of disposable swim diapers that would fill up quickly and cause my little guy to waddle. With these, I don't have that issue! They are comfortable and adjustable on the sides and front, allowing him to play freely. The two-pack is perfect for quick changes during outings. The quality is great, with no chafing, and they work well in the water. I’m very satisfied!"

"These swim diapers are fantastic! They have multiple snaps for a custom fit, and they are so easy to put on and take off. I love the cute designs and the durability. They have performed well, and I appreciate that they don't irritate my baby's skin like other brands. I'm really happy with this purchase!"

"I found the quality to be very good, but unfortunately, it was too small for my baby."

"When I tried to use it for the first time, it didn't fit my 3-month-old, who usually wears 3m clothes."