Under Armour Boys' Infrared Fleece 1/4 Zip Vest 100% Polyester Imported Loose: Fuller cut for complete comfort ColdGear Infrared technology uses a soft, thermo-conductive inner coating to absorb & retain your own body heat Moisture Transport System wicks sweat & dries fast Brushed fleece is soft on both sides & delivers superior warmth Double-zip garage minimizes neck irritation