Bobster Foamerz 2 Sport Sunglasses Lens width: 75 millimeters WRAP AROUND FRAME: The Foamerz sport sunglass provides the ultimate in peripheral vision with its unique lens shape and wrap around frame, which stay put and fit easily under a helmet, providing all the benefits of a goggle in a sunglass style CLOSED CELL FOAM: The Foamerz also come with closed cell foam to ensure a tear free ride while cruising. This type of foam provides low water absorption while being weather and chemical resistant. It also lasts longer than most other foams IMPACT RESISTANT UV PROTECTION: Our Polycarbonate lenses are super lightweight and up to 10 times more impact-resistant than plastic or glass lenses and they also provide 100% protection from the sun's harmful UV rays OPTICALLY CORRECT LENSES: Optically correct lenses prevent headaches from extended wear of eyewear. Non-optically correct lenses cause continuous refocusing due to distortion. This places a large amount of strain on the eyes and can eventually lead to headaches, nausea and dizziness ANTI FOG LENS COATING: Anti-fog coating provides fog free vision to help see clearly longer. The Foamerz is available in Smoked, Amber, or Clear lens options