high performance lenses for razor-sharp vision. oakley perfectly integrates the past into the modern world of today with the hstn.their round lenses make them a gender-neutral pair of sunglasses that, with their razor blade-inspired temples, dare to take a design look back in time. the lightweight, yet virtually indestructible o matterâ„¢ frame material makes you almost forget you're wearing sunglasses. due to the three-point fit of the sunglasses, the lenses are always held in the correct position and there are no unpleasant pressure pointsoakley prizmâ„¢ lensesprizmâ„¢ is the revolution in lens optics. by fine-tuning individual waves of colour, prizmâ„¢ sharpens visual acuity to reveal nuances that would escape the naked eye. with ordinary sunglass lenses, the environment appears dull and flat. prizm lens technology makes everything look alive and vibrant.full protection for your eyes from harmful rays is always maintained by the plutonite® lenses. the lenses filter out 100 % of all uva, uvb and uvc rays, protecting you even in the most extreme situations. thanks to xyz optics® technology, the lenses are always optically correct, so your eyes don't get tired and there's no optical distortion.