Thirsties One-Size All-in-One
Classic Jurassic

Thirsties One-Size All-in-One

Your Price: $21.50
(Number of this option only. See drop-down for all inventory.)
Part Number:THOSAIO

Color ~ Closure
This is a special order item! We have a demo in store if you'd like to check it out in person before ordering.  Simply choose your quantity and the registry/special order options and let us know your color or print preferences in the comments of your order! We'll generally have it in for you (or to you if you're not local) within a week!


  • 40% more absorbent and dries 3 times faster than the Duo All In One
  • Convenient, trim fitting, and absorbent
  • Goes on in one simple step - cloth diapering doesn't get easier
  • One size diaper provides a customizable fit for most babies from birth to potty
  • 4 total layers of absorbent microfiber terry, a microfleece liner and a reliable waterproof exterior
  • Available with hook & loop or NEW snap configuration with two rows of snaps
  • Gentle elastic around legs and waist provide protection against leaks
  • Stay-dry microfleece liner provides wetness protection

Please note, we do not keep these in stock in the store but can happily order in whatever closure style and colors/patterns you would like.  We can generally have them available in just a few days. 

Thirsties new One Size All in One reusable diaper truly challenges the convenience and trim-fit of a disposable diaper.  This diaper offers absorbency, waterproof protection, and adjustability all rolled up into a stylish, comfortable and extremely effective cloth diaper. 

A built-in, three-layer microfiber terry soaker absorbs an amazing seven times its weight in liquid. The soaker is topped with our stay-dry microfleece which keeps your baby feeling dry. An additional layer of terry lies between the microfleece and PUL body of the diaper providing a last line of defense. The soaker is sewn in on one side (at the top of the diaper), which makes adding extra absorbent layers a cinch and tremendously decreases drying time…it’s the fastest drying diaper we’ve ever created!

Both hook & loop and snap closures are available on Thirsties One Size All in One. While many families prefer hook & loop closures because of the simple, secure fit they provide, snap closures do have a few advantages of their own. They are practically indestructible and are more unyielding than our hook & loop closures, making them more challenging to unfasten for a toddler who prefers to go naked.

All in all, Thirsties One Size AIO gets a BIG thumbs-up from your wallet, your family, your daycare facility, and occasional caretakers alike.

Proudly manufactured in the USA


Outer: 100% polyester with waterproof urethane coating
Inner liner: 100% polyester microfleece
Inner absorbency : 1 layer of microfiber terry
Inner soaker: 100% polyester - 3 layers of microfiber terry topped with layer of microfleece


Before use: Wash 1-3 times using a cloth diaper safe detergent.

At every wash cycle:

-Prewash on warm

-Wash on hot

-Add another rinse on warm.

-Hang dry or dry in the dryer on low. Turning the diapers inside out may speed dry times. If the diapers are stiff after line drying, you can throw them in the dryer on low heat with some wool dryer balls to soften them.

Important notes:

Use enough water to soak and cover the diapering items and allow them to agitate.

Please avoid the following:

     Laundry boosters/additives

     Sanitize or Whites cycles on HE machines

     High heat in the dryer

     Pure Soap


These practices and/or additives can void the warranty on your Thirsties products.

*A 15 minute cycle on hot in the dryer once a month is beneficial to lamination, and will not void your warranty.


5 Stars
Cloth Diapering Mom
We used these diapers on our first & only son for over 2 years! They were the ONLY brand & style that we liked. We have over 3 dozen in various colors. He's a little guy and they fit him from day one. The absorbency has been excellent, the elastic has not worn out n stretched much and our snap closures are in great condition still. We washed them every other day in a CD approved detergent in our HE Front Loader with no stink issues (big fan of Charlie's Wash); we hung them dry on occasion, but mostly they were dried on low-medium heat with some wool dryer balls and they were always dry in 1 one hour cycle. Would def recommend this brand.
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Reviewed by: (Verified Buyer)  from Burgettstown, PA. on 3/28/2017
4 Stars
We tried these AIO's because we were not happy with the absorbency or the closures on the first brand we tried. These hold more and I love how nicely they velcro around the waist. We prefer velcro over snaps because we feel as if they fit tighter around the waist.
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Reviewed by: (Verified Buyer)  from Cheswick. on 2/19/2015

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