Under Armour Men's ColdGear Infrared Fitted Mock 87% Polyester/13% Elastane Imported The ultimate pants for everything you do: they could go straight from work to the gym & back again Light, durable fabric that feels substantial & allows you to move UA Microthread technology in the fabric dries faster, wont cling to you, wont chafe & stretches without absorbing sweat Breathable mesh back panel is still durable, but delivers superior ventilation Material wicks sweat & dries really fast