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Details & care
Found: a bulk-free swim diaper that *actually* works. Says customer Kelly: “I couldn't believe how absorbent it was without having the bulky padding I'm used to from other reusable swim diapers.” | 80% recycled nylon/20% spandex | Comfortable, snug fit with no-dig elastic waist and legs | Can be worn alone unless your pool requires a double layer
- 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
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Primary
Primary is a mom-founded kids 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.
Most helpful positive review
Sept 9, 2025
Perfect swim diaper
This is the only reusable swim diaper I've found that fits my kid well! It's big enough to fit him comfortably, fitted enough to avoid leaks, and the elastic is soft and flexible (other reusable diapers we've tried have firmer, tighter elastic that pinches him and leaves marks). It was an absolute bargain at the end of season sale so I bought the next size too!
Sara
Verified purchase
Reposted from Primary
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
Verified purchase
Reposted from Primary
5 stars
83%
4 stars
9%
3 stars
5%
2 stars
2%
1 star
2%
Pros:
Cons:
Current reviews don’t mention any.Sort by Most Helpful
Sara
Reposted from Primary
Verified purchase
Sept 9, 2025
Perfect swim diaper
This is the only reusable swim diaper I've found that fits my kid well! It's big enough to fit him comfortably, fitted enough to avoid leaks, and the elastic is soft and flexible (other reusable diapers we've tried have firmer, tighter elastic that pinches him and leaves marks). It was an absolute bargain at the end of season sale so I bought the next size too!
H
Reposted from Primary
Verified purchase
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
cyyuuu
Verified purchase
Size purchased: 18-24M
Fit:
Small
True to size
Large
Color: Cantaloupe
Aug 31, 2025
great fit, questionable material
I bought this for my 18 months old baby, we tried on and the fit is great, the material seemed very soft and comfortable at first. But after just one wear, the outer material has pilling all over, and the worst is that the swim diaper gave my baby terrible contact rash on his inner thighs, butt cheek, and lower waist.
I wish I can return this. And I just want other parents to know, be aware if your baby has sensitive skin, it might irritate the skin badly.
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Sophie
Reposted from Primary
Verified purchase
Aug 31, 2025
Summer needs list
So cute and looks small but fits comfortably!
Momofthree
Reposted from Primary
Verified purchase
July 19, 2025
Best swim diaper
Great quality, the fit is spot on, and the color is very vibrant.
BB
Reposted from Primary
Verified purchase
June 15, 2025
Wonderful swim diaper studying
Great swim diapers! I’ve bought several!