Adjustable fitment strap to fit into any size Goggles fit perfectly under ballistic helmets for added safety Foam lines help close out seals for complete protection. Ventilation system gives much needed air to prevent fogging Rear cushion to deliver comfort to the airsoft user Lens are made out of anti-fog and polycarbonate quality for durability Interchangeable lens includes several colors in smoke, yellow, and clearSpecifications: Brand Bobster Build Matte-Black Rubber Frame / Polycarbonate Lens Model Low Profile Safety Rating ANSI Z87.1-2003 +, MCEPS' Lens Color Smoke, Yellow, Transparent Package includes 1X Frame, 3X Lenses Color BLACK 1X Frame