3 Two layers of ultra-soft 70% rayon from bamboo 30% organic cotton fleece give you the ultimate in comfort and absorbency! Fold this approximately 12 x 15 insert into thirds and you get six layers in the soaker zone. 2ply Bamboo insert to use with AppleCheeks Nappy Covers. Use this insert in an AppleCheeks Envelope Nappy Cover. Rayon from Bamboo is perfect for the heaviest wetter as it retains twice as much moisture as cotton alone for its weight! And plus rayon from bamboos antimicrobial properties make it the healthy choice for your babys bottom. Rayon from Bamboo is the cloth Nappy choice!