This is the first layer that you put on every time the mercury dips. It's the weight of a T-shirt, fits comfortably next to skin, wicks away sweat and keeps you amazingly warm. If you work out when it's cold, you better do it in ColdGear® Armour. Fitted: Next-to-skin without the squeeze Dual-layer fabric with an ultra-warm, brushed interior & a smooth, fast-drying exterior 4-way stretch construction moves better in every direction Material wicks sweat & dries really fast Smooth, chafe-free flat seam construction Articulated, ergonomic mock neck with ARMOUR wordmark on the back