65% Polyester/35% Cotton. Treated with Teflon for stain, soil and liquid stain resistance. Comfortable, self-adjusting tunnel waistband that moves with you. Gusseted crotch that allows freedom of movement and virtually eliminates seam failure. Prym snaps and YKK zipper. 5.11 Double-Time belt loops. Free neoprene kneepads by mail-in hangtag. Full-size cargo pockets with internal dividers and external EMSspecific pockets. Utility pockets at the calf.