HP Surface goggles feature toric colorful Carl Zeiss® Multilayer lens made with Zeiss’s Sonar technology, that enhances the contrasts & filters the light, to read the snow better & faster. Super ventilated frame & a wide angle of vision make them the perfect goggles for every all-mountain skier. Features Changeable lens Elastic band with silicone gripper Sonar® Technology Material Carl Zeiss® Multilayer lens S2