Skullerz 8997 Anti-Scratch/Anti-Fog Face Shield Replacement, Cap-Style/Safety Helmet, Clear Lens Compatible with Skullerz 8996 Face Shield Adapter Frame and 8994 Hard Hat and Safety Helmet Face Shield (sold separately). When installed on adapter frame, easily mounts on Skullerz Cap-Style Hard Hats and Safety Helmets for increased eye and face protection. Enhanced Fog-Off+ technology offers improved anti-fog performance vs original Fog-Off. Enhanced scratch resistance technology for improved durability. Lens filters 99.9 percent of harmful UVA, UVB and UVC rays to keep eyes safe in the sun. Durable polycarbonate lens is 2mm in thickness.