Dual-layer fabric with an ultra-warm, brushed interior & a smooth, fast-drying exterior Stretch-mesh back & underarm panels provide strategic ventilation without sacrificing warmth 4-way stretch construction moves better in every direction Material wicks sweat & dries really fast Ergonomic design keeps seams off of high abrasion areas Mock neck construction for added coverage & warmth Dropped, shaped hem - Style #: 1366069 All-over twist effect 87% Polyester/13% Elastane Imported - Machine wash cold with like colors Use only non-chlorine bleach when needed Tumble dry low Do not iron Do not use softeners Do not dry clean