Constructed of 100% polyester UA Tech Fleece fabric. UA Tech Fleece fabric uses a textured interior, providing unrivaled warmth for the weight. ColdGear Infrared uses a soft, thermo-conductive inner coating to absorb and retain your own body heat. Signature Moisture Transport System wicks sweat away from the body. Zip hand pockets with left side internal headphone escape. Three-piece, high-neck hood. Ribbed cuffs and hem. Semi-fitted, slimmer athletic cut delivers better mobility by eliminating the bulk of extra fabric.