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, Elastic with adjustable drawstring at waist, Reflective logo on back and bottom, Flat lock seams, 9.25" inseam. Also includes the Comfort Chamois for men with a multi-directional stretch for better comfort.