The Men's UA Coldgear Infrared Evo CG Mock was created to accomplish many feats all at the same time. Quick drying material. Built in 4-way stretch helps improve mobility and accelerate dry time. Fabric treated with antimicrobial agents to help manage odor. Inspired by stealth bomber technology, Under Armour created COLDGEAR INFRARED that's coated with a thermo-conductive ceramic pattern that captures your own warmth and reflects it inward. Extremely light, incredibly warm, totally stealth. Dual-layer fabric gives you an ultra-warm interior and a slick, fast-drying exterior. Flatlock stitching keeps chafing to a absolute minimum. Warmth without the squeeze with updated winter waistband construction.