Product Overview: Men's ColdGear Armour Long Sleeve Fitted Mock Features: Compression: Ultra-tight, second-skin fit for a locked-in feel. 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 Anti-odor technology prevents the growth of odor-causing microbes Smooth, chafe-free flatlock seam construction Updated, ergonomic mock neck with ARMOUR wordmark on back 87% Polyester/13% Elastane