Thirsties Organic Cotton Flat Diaper

Stretchy knit organic cotton.  Best for trifolding or wrapping (wrap baby and tuck in ends).   Snappis and pins might damage knit cotton.  It's also a very lovely receiving blanket.

Stock Status:  In stock. Usually ships in 24 hours.

 Features and Benefits:

  • Single layer of GOTS certified organic cotton
  • Stretchy, soft knit cotton provides a comfortable and customizable fit
  • Very versatile--can be folded in numerous ways to maximize absorbency where your baby needs it
  • Single layer dries quickly and is a great, low-maintenance option for hand washing and/or line drying
  • Less bulk makes these easy to double with another Flat or pair with a Thirsties Hemp Insert or Organic Cotton Doubler for even more absorbency
  • Place inside a Duo Wrap or Diaper Cover to complete your waterproof system



Thirsties Organic Cotton Flat is a single-ply, one-size-fits-all diaper that can be folded in numerous ways to provide customizable absorbency. We recommend washing and drying your Thirsties Organic Cotton Flat at least three times before use to rid the fibers of natural oils for maximum absorbency.


Try different folds to find the right absorbency concentration for your baby.  A fan favorite and the fold we recommend due to its simplicity and performance is the pad fold.  Simply pad fold your Thirsties Organic Cotton Flat, and lay it in a Thirsties Duo Wrap or Diaper Cover for a complete diaper system for your baby. Additionally, Thirsties Organic Cotton Flats may be used for additional absorbency in Thirsties Pocket Diapers. Very soft and stretchy jersey knit. 


If using a fastener with our flats, please note fasteners can leave small holes that shouldn’t affect function, but the holes are not covered under our warranty.  If you choose to use a fastener, rotate your flats during usage so different sides are fastened each time. Sold individually. Price is for one diaper. 



Pre Wash – Roughly 29” x 27.75”

After Wash – Roughly 27.5” x 27.5”



  • 1 layer of 100% GOTS Certified Organic Knit Cotton thirsties stretchy organic cotton flat in diaper cover

Subscribe to the Green Mountain Diapers Newsletter