Ergo Sensor stretch knit made of 10% Lycra, 28% polyester and 62% mycrotactel nylon. This technical fabric has a polyester back to absorb moisture and keep you dry. Features: Ergonomic Fit, 8 panels, Signature leg gripper, Reflective logo on back and bottom, No seam inside leg, Flat lock seams, 5.5" inseam, Low waist, 1.5" lower. Elastic with adjustable drawstring at waist. Also includes the Comfort Chamois for women with a multi-directional stretch for better comfort.