Product description Sport Sunglasses with photchromic lenses by Bertoni Italy F180-2. Made in TR90LX , Carbon and Nylon mesh material, stress-resistant and impact-resistant, extremely light. These characteristics are due to the chemical composition of this material unique in its kind, 70% Nylon 30% Carbon. It is 20% lighter than conventional nylons and offers greater resistance to shock and traction. It offers a greater resistance to high temperatures without deformation. Due to its flexibility and strength the TR90LX is the safest material for sportive use in optical, in fact, the resistance of the head frame of accidental collisions has demonstrated a strong structural integrity. This special material also ensures an exponential increase of the frame duration in the time. Lenses are in PC BERTONI Photochromic Polarizing Sports Cycling Running Golf Wraparound Windproof Sunglasses - Antifog Lens - Adjustable Nose mod. 180. Photochromic 2,2mm. of thickness anticrash and coated by an antifog resin. Sportig people will be captivated by the characteristics of this PHOTOCROMIC which darken and lighten automatically depending on the UV light exposure. The lens are treated with a special resin which removes the eventual condensation. Adjustable nosepad , double injection temples. Suggested Sports: cycling, running, motorbike, ski, golf, skydiving. Legal Disclaimer 4 Years warranty - 30 Days to Return
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