ASICS Men's Thermal Extra Protection Slim Pant 84% Polyester, 16% Spandex Imported Slim fit tailoring provides the comfort of a pant with the performance styling of a tight Plush, insulating Durable Water Repellent fabric provides greater comfort and cold weather protection Zippered back pocket provides secure storage Articulated seams provide greater comfort and extended range of motion Reflective elements provide enhanced in low-light conditions