Thirsties Swim Diaper
Thirsties Swim Diaper
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Thirsties Swim Diaper

Product Rating: review

A beach or pool ready version of the reliable and popular Thirsties Dup Wrap cover!

On Sale$12.60

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Size - Print/Color


Thirsties Reusable Swim Diaper

Just in time for summertime fun in the sun, you'll love Thirsties Swim Diaper!

Thirsties Swim Diaper is available in two sizes, Thirsties Swim Diaper is a trimmed-up beach or pool-ready version of the popular Duo Wrap and meets the requirements of most public swimming pools and recreation areas. Thirsties has designed this trim-cut swim diaper with a mesh interior and hip snaps to keep baby splashing in comfort while their signature double leg gussets and waterproof exterior shell keep you and everyone else swimming worry-free! The Thirsties Swim Diaper, available in three new summer prints, from function to aesthetic, is a practical and adorable addition to any baby's summer wardrobe!

Thirsties Swim Diaper Features

  • Trim cut and soft mesh interior allows baby to swim in comfort and style
  • The signature leg gussets help keep dirty messes contained
  • Available in two sizes to fit most babies up to 40lbs
  • Snap closure offers easy removal and adjustability for custom fit
  • Amazing hip snaps that prevent the dreaded wing droop
  • Swim diaper that meets the requirements of most public pools and can be used over a disposable swim diaper!

Size chart

Size Weight Age
Size 16-18 lbs0-9 months
Size 218-40 lbs9-36 months


  • Beach Party

  • Hala Kahiki

  • Palm Paradise

  • Surf's Up


Thirsties Duo Wrap Diaper Cover Size 1
Thirsties Duo Wrap Diaper Cover Size 1
The Thirsties Duo Wrap Size 1 will fit a 6 lb. newborn all the way to 18 pounds! Additional sizes available for babies 18-60+ pounds.
Add Thirsties Duo Wrap Diaper Cover Size 1 to Cart
Learn more about Thirsties Duo Wrap Diaper Cover Size 1
Thirsties Wet Bag
Thirsties Wet Bag
The Thirsties Wet Bag offers dirty diaper storage while on the go!
Add Thirsties Wet Bag to Cart
Learn more about Thirsties Wet Bag
BALM! Baby SUN! Sunscreen 2oz Stick
BALM! Baby SUN! Sunscreen 2oz Stick
All natural mineral sunscreen in a convenient, eco, biodegradable stick!
Add BALM! Baby SUN! Sunscreen 2oz Stick to Cart
Learn more about BALM! Baby SUN! Sunscreen 2oz Stick

Customer Reviews

5 Stars
No leaks!
Reviewed by:  from Ohio. on 7/29/2018
I got the size one thirsties swim diaper when it came out for my beach vacation with my 9 month old. It worked so great that when he outgrew it at 11 months I knew I needed a size 2! These diapers are easy to use and hold in all that icky, runny poo from ever leaking out into the pool (trust me, we've experienced it firsthand). I like the sizing of these offer to give a better fit and the fact that they snap on makes them more secure than the pull-up kind. Worth the few extra bucks, in my opinion. You only need one or two, depending on how much you'll be using it. They can easily be rinsed between wears just like a swimsuit. I only wash if there's a massive poo or after we're done using it for a time.
5 Stars
Toddler Approved
Reviewed by: (Verified Buyer)  from utah. on 7/26/2018
Size two fits on my bigger 20 month old with still enough room to grow. It's cute and seems comfy. She likes wearing it.
5 Stars
Love it!!!
Reviewed by:  from Vancouver. on 6/28/2018
This diaper is great. It fits well and allows baby to move easily and there is no bulk like disposable swim diapers. Sung to contain messes!!!!
5 Stars
Great swim diaper!
Reviewed by:  from Clifton, VA. on 7/25/2017
I bought the size 2 for my tall and skinny ~17 lb 5 month old, and it worked great. Like the duo wraps, the swim diaper did a good job holding in EBF poop (though we didn't have any poop incidents while he was in the water). The PUL also did a surprisingly good job holding in pee without any inserts. Looking forward to using these for many summers!
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