Photochromic Sunglasses for Cycling Running Golf Ski by Bertoni Italy - F301B Bike Sunglasses:
Frame: shatterproof Nylon Mesh - Grip at the tip of the arm and nosebridge: keeps the sunglasses from slipping.
Lens: photochromic from totally clear to smoke in only 8 sec.- it adapts to changes in light.
Adjustable nose pads: adjust to the size of the nose - Wraparound design: protects the eyes from wind, splashes and bad weather, provide enhanced peripheral vision - Size: suitable for all types of faces (narrow to large).
Wide peripheral vision - 100% UV protection lens.
Free Expedited Shipping - Bertoni provides lifetime after sale service for all Bertoni goggles and sunglasses.
Bertoni F301 photochromic sunglasses have photochromic lenses with antifog, with increasing and decreasing exposure to UV rays, tend to clear to smoke automatically, always ensuring an excellent visual performance. The frame of the sunglasses of this collection are made by polycarbonate, a plastic material with high impact resistance, lightweight and durable.
Photochromic lenses in shockproof polycarbonate protect the eyes every day, in the presence of sunlight, overcast or intermediate weather conditions. In addition, they are treated with a special resin which removes the condensation that forms on the lens surfaces in the transition from hot to cold. The reaction time of the photochromic lenses are very fast as 8 seconds to go from clear to smoke, and 35 seconds from smoke to clear.