Under Armour Boys' ColdGear Infrared Hood 100% Other Fibers Imported ColdGear Infrared technology uses a soft, thermo-conductive inner coating to absorb & retain your own body heat Form-fitting balaclava construction is light, thin & breathable Offers full facial protection that extends below the neck & can convert to a neck gaiter Perforations on fabric in front of mouth for enhanced breathability Smooth, chafe-free flatlock seam construction for zero distractions