Safety HeadgearPlastic-resin shell with nylon crown provides sturdy protection without weighing you down. Ratchet-handle adjustability allow you to maintain a comfortable, snug fit. Five-point cam-lock design ensures secure attachment. Soft and absorbent, washable cotton sweatband helps you keep perspiration out of your eyes. Compatible with standard faceshield windows. Material(s): ABS Plastic Resin; Nylon 66; HDPE Plastic; Cotton.