Fibre-Metal® Noryl® F400 Headgear with a 4" crown ratchet headband features a speedy mounting loop that offers on/off welding helmet or faceshield mounting on protective caps. The ratchet headband extends the security without increasing weight and suits easily on the required spectacles or respirators. Headgear integrates a wide vision 8" X 17" windows and screens that offers 40% more protective area and features a slot/pin mechanism with locking cams. The channel grip system mounts windows and grips them in place in a deep recessed channel to secure from dirt and debris. The free floating headgear can be attached to cap series hard hats.