Bolle Performance Swiftkick Sunglasses (Plating Titanium/Competivision Gun + TNS Gun) Fit - Medium/Large UVA/UVB protection - bolle exceeds the industry standard with 100 percent Premium-grade resin that's 20 times more impact resistant than glass-and three times lighter Adjustable nose pads feature patent-pending technology and can be tailored to fit your nose perfectly The patent-pending technology in our Rx adapter lets you attach prescription lenses