Iso-Chill fabric helps disperse body heat, making it feel cool to the touch 4-way stretch material moves better in every direction Material wicks sweat & dries really fast Anti-odor technology prevents the growth of odor-causing microbes UPF 50+ protects your skin from the sun's harmful rays Low-profile, modern collar Side-vent hem Style #: 1377366 91% Nylon/9% Elastane Imported