Product description Shatterproof Lens The polycarbonate lens of Vogel XC is scratch-resistant and made of shatterproof material. Vogel XC's wraparound design means your vision is unobstructed and your face is fully protected Durable Frame Tifosi Vogel XC sunglasses frames are made from Comfort Grip technology that adds a flex to the ear pads that holds the sunglasses securely without causing pressure. Hydrophilic Nose Piece The hydrophilic rubber nose pieces increase grip the more you sweat. This limits slippage and increases comfort during any outdoor activity. Slip Resistant Ear Pieces The hydrophilic rubber ear pieces limit slippage and keep Vogel XC sunglasses secure while running, hiking, golfing, or playing baseball.