Aug 13, 2026
Best swim diaper
Love this swim diaper, it’s not bulky and doesn’t hold water like the other ones we’ve used.
Tara
Verified purchaseDetails & care
A bulk-free swim diaper that *actually* works. With a comfortable, snug fit with elastic waist and legs. It is lightweight, smooth and stretchy. The swim diaper is made from 80% recycled nylon/20% spandex, with UPF 50+ protection and 100% water-resistant recycled polyester lining that contains waste without absorbing or swelling.
- Fabric: 80% recycled nylon/20% spandex, with UPF 50+ protection; lining is 100% water-resistant recycled polyester that contains waste without absorbing or swelling.
- Feel: Lightweight, smooth, and stretchy.
- Note: Swim diapers of any kind are designed to contain waste, not liquids.
- Item #10714784
- Core Product ID 333333RRH8
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This item has a different return policy. Items sold and shipped by Primary Kids, Inc. can be returned by mail or to a Nordstrom store within 90 days of when the item shipped and must be in new condition, with tags attached.
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Primary Kids
Primary is a mom-founded clothing brand on a mission to encourage every kid to be the truest version of themselves. Since launching in 2015, Primary offers a rainbow of simple, gender-neutral styles known for their hand-me-downable quality, super soft and sustainable fabrics, and colorful, slogan-free designs.
Reviews
(300)3004.7 out of 5
Fit: True to size
Most helpful positive review
Most helpful critical review
Sept 9, 2025
Not a swim diaper, more like a diaper cover
Not a swim diaper. More of a swim bottom and diaper cover. Baby leaked right out of the sides
H
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5 stars83%
4 stars9%
3 stars5%
2 stars2%
1 star2%
Pros:
Cons:
Current reviews don’t mention any.Aug 13, 2026
Best swim diaper
Love this swim diaper, it’s not bulky and doesn’t hold water like the other ones we’ve used.
Verified purchase
Tara
Aug 12, 2026
No leak comfort!
Easy over the diaper protection, no leaks, fits comfortably under their full body swimsuit
Verified purchase
Ness
June 8, 2026
Not bulky, colorful
I have never used a swim diaper before so I’m not sure what they are like but my 14 month old 25lb baby got the 12-18 month size and it fits perfect right now but probably won’t fit for the entire summer. After the first use it has sand stuck inside the fibers.. that might be normal for any swim diaper since he was sitting in sand. I got this on sale so it’s worth it to me. Also it’s hard to find swim diapers that are not blue so I appreciate the brighter colors. I read the other reviews and thought the next size up might have been too big but I’m thinking I probably should have gotten 18-24. My baby is more thick built.
Lindsey
May 9, 2026
Great swim diaper
We've used these for a few years and love them. Cute colors. Highly recommend!
Verified purchase
GT
Apr 28, 2026
A new summer staple
simple and cute!
Verified purchase
Lindsay
Apr 16, 2026
Quality product
Fits my baby really well for the pool, snug but not tight. Definitely secure over a swim diaper.
Verified purchase
Natalie