Saucony Mens Omni lx Tight 92% Polyester/8% Spandex Imported Superior stretch thermal fabric with brushed interior and exceptional moisture management keeps you dry and comfortable Reflective panels along side seams, and reflective stitch detail on back legs will keep you shining bright in low light Zippered back storage pocket with waterproof lining Invisible zippers at leg openings help you get dressed quickly Lined stretch waist with interior drawstring for a snug, Adjustable fit