Under Armour Men's HeatGear Armour Twist &frac34; Compression Leggings 84% Polyester/16% Elastane Imported HeatGear fabric, with all the benefits of UA Compression, comfortable enough to be worn all day UPF 30+ protects your skin from the sun's harmful rays 4-way stretch fabrication allows greater mobility in any direction Moisture Transport System wicks sweat & dries fast Anti-odor technology prevents the growth of odor-causing microbes