The baselayer that keeps you warm when it's cold. Dual-layer fabric with a brushed interior traps heat while wicking sweat fast. 4-way stretch moves with you. Mock neck adds coverage. Ready for anything. Athlete-tested to keep you warm, dry, and focused. Fit & Design: Compression: Ultra-tight fit Dual-layer fabric with an ultra-warm, brushed interior & a smooth, fast-drying exterior Material wicks sweat & dries really fast 4-way stretch material moves better in every direction Mock neck construction for added coverage & warmth Odor control technology minimizes odor