Thirsties One-Size All-in-One Diaper

We love these All-In-Ones! (Talk about TRIM!!!) Thirsties One-Size AIO offers more absorbency, waterproof protection, and adjustability all rolled up into one stylish, comfortable and extremely effective cloth diaper! The inner soaker offers a channel underneath (meaning that is isn't fully attached on all sides), to help with drying time. 

Are you looking for all natural fibers against the skin? Check out the Thirsties NATURAL One-Size All-in-One here! 

Why do we love Thirsties? First of all, they make awesome cloth diapers! They've been a USA-based company that employs a whole lotta local sewers and stay-at-home moms since the get-go. We've been selling their products for many years now, and they always have great customer service and supportive policies for their retailers and customers. Their double-gusseted diaper cover has been at the top of our list for so many years, and is still going strong! There is lots to feel good about here; supporting Thirsties Baby and Jillian's is directly helping local economies and family-oriented businesses. <3 

Thirsties One Size All in One on baby

Thirsties One Size All in ONe diaper, diagram of features


One-Size: fits from approximately 8-40lb. (4-18kg)

Thirsties One Size All in One, choose from snaps or aplix closure


Outer: 100% polyester with waterproof TPU laminate
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


How to prepare for first use

We recommend washing and drying your Thirsties OSn AIOs one time before use. Be sure to fasten aplix (hook & loop) closures before washing. That's it!

For our washing recommendations, click here.


  • Your product is under limited warranty for possible return for up to 1 year after the original purchase date.
  • Defects include loose stitching, holes discovered upon arrival, broken snaps, etc.
  • Staining, fading, holes that develop with use and potential build-up are all considered normal 'wear and tear' and does not suffice for repair or replacement purposes.
  • Leaks are not considered a defect.
  • If your products were damaged by the use of additives or improper care, the warranty will be void.

For warranty/defect issues, please contact Thirsties directly using the form found here.



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