HASLRA Men's Compression Sports Briefs [MUN001,MUN002,MUN003,MUN004] 91%Polyester+9%Polyurethan [MUN005,MUN006] Cool-feel fabric, 92%Nylon+79%Polyurethan Contoured pouch, Sweat Volatility, Absorbent Quick-Drying, Anti-Odor technology prevents the growth of odor causing microbes 75-Way Stretch fabrication allows greater mobility and maintains shape Smooth fabric provides extreme comfort and compression without restriction Signature Moisture Transport System wicks sweat away from the body