Under Armour Infrared Thermo Tights Stretch-mesh panels provide strategic ventilation Moisture Transport System wicks sweat away from the body Anti-odour technology prevents the growth of odour-causing microbes Performance elastic waistband Mesh: 170g Polyester/Elastane Inseam: Size Large 71 cm (+/- 0.5 cm per size) Body: 215g Polyester/Elastane Bonded hex-patterned fabric traps more heat without adding excess weight ColdGear Infrared uses a soft, thermo-conductive inner coating to absorb & retain your own body heat