POC Do Blade Sunglasses - Hydrogen White Violet/Silver-Mirror LensWith lens tints optimized for cycling and numerous features that work to enhance durability and comfort while performing Do Blade sunglasses protect optimum vision in all conditions. Hydrophilic rubber inserts and adjustable nose piece keeps the frame firmly in place Lens tints are designed to increase contrasts on the road surface so you can more easily sport irregularities and react in time Anti fog and ripel treatments help keeping fog dirt and