O'Neal B-10 Twoface Glasses Black - Silver Mirror. Mx/MTB goggles with a classic design frame that offer an excellent field of vision and optimal ventilation. They provide excellent protection and durability thanks to the anti-scratch treatment and the 100% UV coating. Strap with silicone inserts. Three-layer foam for increased breathability. Tear-pff pins (not included). EN1938 certification.