Under Armour Men's HeatGear Armour Compression Shorts &ndash; Long 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 construction moves better in every direction Material wicks sweat & dries really fast Anti-odor technology prevents the growth of odor-causing microbes