ColdGearŽ Infared is a soft, thermo-conductive coating on the inner layer of this long-sleeve, V-neck top from Under Armour that absorbs and retains your own body heat, so you stay warmer, longer. Ultra-soft, lightweight, brushed fabric provides superior warmth and everyday comfort and is perfect to wear alone or as an under layer. Thumbholes keep the sleeves secure and help seal in your body heat. Drop-tail hem offers superior coverage. Signature Moisture Transport System wicks sweat away from the body to keep you dry and comfortable. Anti-odor technology prevents the growth of odor causing microbes for freshness. Raglan sleeve construction and flatlock stitching allows a full range of motion without chafing. ColdGear works best in weather between o and 55 degrees. 97% polyester/3% spandex. Imported.