The Uvex Sportstyle 104 Vario Photochromic Sunglasses will be the only pair of shades you need whether you're riding through Utah's sunny desert, Washington's rainy forests, or a tornado in Kansas. Ok, maybe not a tornado, but the variomatic photochromic lenses adjust the tinting according to the brightness around you, giving you an ideal tint in morning, afternoon, and evening. Uvex also treats the lenses with Supravision for resistance against moisture, water, fog, and oil. These polycarbonate lenses resist scratches and filter out 100% UV rays, and a ten base curvature gives a wider panorama, more coverage, and a better wraparound. The frame's soft nose and temple pads adjust for a secure fit, and Uvex added a removable sweat blocker for a better performance.