An obvious first choice for active comfort when the forecast turns frigid. Under Armour ColdGear Armour Compression Base-Layer Long-Sleeve Shirt for Men offers superior next-to-skin, cold-weather capabilities. Dual-layer fabric, made from 87% polyester/13% elastane, has a soft brushed lining, smooth exterior, and compression fit that quickly wicks away moisture to keep you dry and warm. 4-way stretch construction moves well in all directions. Stretch-mesh back and underarm panels add strategic ventilation without sacrificing warmth. The UA Coldgear men's base-layer shirt features mock-neck construction for added coverage and warmth. Ergonomic design places seams away from high-abrasion areas. Imported.Manufacturer style #: 1366072. 87% polyester/13% elastane Dual-layer fabric with a soft brushed lining Quickly wicks away moisture 4-way stretch construction moves well in all directions Venting stretch-mesh back and underarm panels