Under Armour Men's Infrared Tactical Fitted Leggings Black Size LargeWARNING! This product will melt when exposed to extreme heat or open flames posing a risk of serious injury where melted product comes into contact with skin! ColdGear Infrared uses a soft thermo conductive inner coating to absorb and retain your own body heat Dual layer fabric gives you a soft warm interior and a smooth fast drying exterior 4 way stretch fabrication allows greater mobility and maintains shape Moisture Transport System wicks sweat