very thick and waterproof but hot and small [SEP] stars only because it is very well made the lining is heavy duty silver something but my hair is wet from sweat by the time i get out of the shower because all the fabric is so thick the excellent external waterproofing is defeated by internal sweat created it almost doesn t cover my fat head either and my hair is only a few inches long i have to really pull it on tight for full coverage i am very disappointed probably only good for children