• Photochromic Changing Conditions.
• 100% UV protection, with a Cat. 0% shade Clear to Cat. 3% Sun.
• Polycarbonate lens.
• Lightweight frame.
• One year warranty directly with manufacturer.
• Microfiber Cloth

The Zol Grand Prix photochromic sunglasses have an optical lens that darkens on exposure to light of sufficient high frequency, most commonly ultraviolet (UV) radiation. In the absence of the activating light, the lenses return to their clear state. This is a lightweight sports frame that fits medium to large faces. The lens provides 100% UV protection, with a Cat. 0% shade to Cat. 3% sun.