This shower cap is a curly gals dream come true. It has lots of room for big hair and will keep your "do" in place. And yes, it repels water! That's right! No more tying Target and WalMart bags around your head in the shower. The outer layer is made of a thin layer of water resistant (polyester fibers & plastic) material that is light weight, non toxic and mold resistant. The inner layer is of course satin to retain optimum moisture on the hair strands. The showercaps currently do not come with a drawstring.