7.25 oz. mechanical stretch twill, 65% polyester/35% cotton. This moisture-wicking pant sits below the waist and has a slim fit through the seat and thigh with a tapered leg. Put away your iron because this pant is equipped with a wrinkle resistant fabric, which also has a stain-release finish to prevent stains from setting in. Mechanical stretch flex fabric offers comfort and ease of movement with a better range of motion.