Sundog manufacture high-quality sunglasses at a terrific price, sunglasses that are ideal for any outdoor sport where clarity & enhanced vision is required. These Sundog Razor sunglasses provide amazing value for your money. World-class optics that enhance undulations of the golf course & provide unique patented lens technology that completely blocks out blue light, this blue light contributes to eye strain & fatigue. The shatter-proof & impact-resistant polycarbonate are both UVA & UVB resistant for peace of mind. You will love the look & clear viewing experience they provide at a fantastic price. A must for keeping the sun out of the eyes when the sun is low.