ROCKBROS Unisex Photochromic Cycling Sunglasses UV Protection for Outdoor Sport Black Blue

Features

• CONVENIENCE: Intelligence lenses changing from light to dark based on the UV intensity. Lighter the outside,darker the lenses. Do not need to interchange lenses for different light conditions
• LIGHTWEIGHT: This photochromic sunglasses only weight 29 grams. PC made lenses and frame process durable RockBros photochromic cycling glasses.
• Wide use for outdoor activities such as cycling, running, hiking ,climbing ,skiing ,fishing ,driving.
• SOFT rubber nose bridge can adjusting to your expected angle maximum personalized outfit
• Clarity vision: Transmittance from 80% to 18% (80% is light gray color when in low UV, 18% is dark gray color when in high UV)