Thirsties Duo Wraps are very trim-fitting diaper covers. Duo Wraps are completely waterproof – yet remain breathable, pliable, and very comfortable for your baby’s delicate skin. With the adjustable rise, you will only need two sizes from birth to potty. Leg gussets provide advanced leak protection and the bindings are super soft against your baby’s skin. The inside of the Duo Wraps can be wiped clean between uses – allowing for fewer wraps in rotation and greater affordability. We recommend one cover for every 3-4 diapers in rotation (excluding diapers with waterproof exteriors).