Thirsties Duo Fitted diaper is the inner part, the absorbency, available in two sizes. Use it under a diaper cover such as Thirsties Duo Wrap. Just wo sizes take you from birth to potty training. 

Size One    6 - 18 pounds 

Size Two   18 - 40 pounds 

Experience unmatched protection against messy blowouts with Thirsties Duo Fitted. The Duo Fitted is crafted from premium quality, stretchy, and soft 100% organic cotton interlock, ensuring maximum comfort for your little one.

Featuring a truly innovative design that keeps absorbency right where you need it -- no more shifting or bunchy soakers. Plus, the simple-yet-clever snap configuration allows for a customizable fit that grows with your baby. Combine a Duo Fitted diaper with a Duo Wrap for a leakproof and waterproof diapering solution.

The 'pocket' of the Duo Fitted is large enough for stuffing extra absorbency (sold separately) for extended or nighttime wear.

How many do I need?  (3) Duo Fitted diapers for every (1) Duo Wrap in your stash.

All Thirsties products are proudly manufactured in Colorado, USA.

Contents: 100% organic cotton exclusive of snaps and trim.