Saucony Men's Siberius Pant 92% Polyester 8% Spandex Imported Sibelius logo changes from white to blue when temps dip below freezing Zippered front hand pockets keeps all your essentials secure Lower leg zippers get you off and running with ease, with reflective trim for extra visibility Straight leg fit with 31.5 inch inseam, and gusseted crotch for chafe-free comfort Elastic waist with front internal drawstring, with plush logo gripper elastic at back waist for comfort