Under Armour

Under Armour Boys' ColdGear Infrared Long Sleeve,Midnight Navy (410)/Midnight Navy, Youth X-Large

ColdGear Infrared technology uses a soft, thermo-conductive inner coating to absorb & retain your own body heat. Insanely soft, smooth fabric for total comfort, all day long. 4-way stretch construction moves better in every direction. Material wicks sweat & dries really fast. Anti-odor technology prevents the growth of odor-causing microbes.