Under Armour Coldgear Evo Mock - Boys' Grade School The Under Armour EVO ColdGearŽ Fitted Mock keeps you warm without weighing you down. Dual-layer fabric has a durable, smooth, fast-drying exterior. Soft, brushed interior traps warmth without adding bulk. Four-way stretch fabric allows greater mobility and maintains its shape. Signature Moisture Transport System wicks sweat away to keep you warm and dry. Anti-Odor Technology prevents the growth of odor causing microbes. Flatlock Seams prevent chafing. ColdGear works best in weather between 0 degrees and 55 degrees. 89% polyester/11% spandex. Imported.