Skullerz SKOLL Anti-Scratch/Anti-Fog Safety Glasses, Matte Black Nylon Impact Frame, Indoor/Outdoor Polycarbonate Lens Single lens, blade-style frame provides wide field of vision and coverage. Enhanced anti-fog Fog-Off+ technology offers improved anti-fog performance vs original Fog-Off. Enhanced scratch resistance technology for improved durability. Impact resistant. Lens filters 99.9 percent of harmful UVA, UVB and UVC rays to keep eyes safe in the sun. Rubber nose piece and rubber temples keep the glasses secure and resist sweat.