Under Armour Men's ColdGear Armour Graphic Compression Crew 87% Polyester, 13% Elastane Imported Dual-layer fabric with an ultra-warm, brushed interior & a slick, fast-drying exterior 4-way stretch fabrication allows greater mobility in any direction Material wicks sweat & dries really fast Anti-odor technology prevents the growth of odor-causing microbes Smooth, chafe-free flatlock seam construction