Camo Chique Boutique Realtree Blaze Orange Gore-Tex Boonie Hat Gore-tex Waterproof Breathable Fabrics are made from a form of polytetrafluorethylene (PTFE). PTFE is very durable and stands up to regular use and repeated laundering. Goretex Boonie hat in Realtree Hardwoods Blaze, a Camo Chique exclusive Lightweight crown; sturdy brim; Gore-Tex tag on brim , Wicking black band with inner black mesh lining for breathability Water-proof, Water-resistant; breathable; Head cord & chin cord for adjustability GORE-TEX fabrics allow sweat to pass through and help reduce overheating and perspiration buildup 360 degree brim; OSFM Mens Small-Large (Not designed for XXL)