Very thick and waterproof, but hot and small [SEP] 2 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.