Under Armour Men's ColdGear Armour Elements Leggings 100% Other Fibers Imported UA Storm technology on thighs & calves repels water without sacrificing breathability ColdGear Infrared technology uses a soft, thermo-conductive inner coating to absorb & retain your own body heat Dual-layer fabric with an ultra-warm, brushed interior & a smooth, fast-drying exterior Mesh gusset & inseam panels deliver strategic ventilation 4-way stretch construction moves better in every direction