Frameless goggles Two lenses included (RIG Topaz - light transmission: S3 /RIG L Amethyst - S2) Short distance between the strap and the lens ensures easy helmet fit Shatter-resistant 2.8 mm toric lens Large field of view RIG®: technology that increases lens contrast while minimizing eye fatigue and color distortion GORE® Protective Vents technology that equalizes pressure between the lenses, thus reducing image distortion of the inner lens caused by changing atmospheric pressure 100% UV protection Clear AF: anti-fog technology prevents fogging on the lens, demonstrating much greater effectiveness compared to standard inner lenses Weight: 550 g