bSoft Bamboo Flannel Button Up 36" Sleepshirts Flannel Made from Bamboo with premium cotton (70% Bamboo Rayon/30% Cotton). Classic sleep shirt silhouette with buttons from top to bottom. Shirt features one front pocket under the left shoulder. Sizes run as follows: Small/Medium (4-8), Large/X-Large (12-18) Matching Sleepshirts, footies, slippers, headbands, throws, and scarves all available on Amazon and Prime eligible.