Feature: 1. High‑toughness and impact‑resistant PC lenses, lighter lenses, more flexible than ordinary lenses, better impact resistance; lenses effectively resist UV rays. 2. Ergonomic frame, self‑adaptive frame fits various face shapes, does not clamp the face; fits the face without pressure; rubber nose pads have a delicate texture, soft and do not oppress this bridges of the nose. 3. Adopting Photochromic technology, the lens can automatically adjust to the light strength, can resist most of the ultraviolet radiation, protecting the eyes. 4. According to the strength of ultraviolet light, the color depth of the lens is automatically changed, which can enhance color recognition, improve and optimize the visibility of changes in the movement of surrounding objects, and greatly improve safety. 5. Multifunctional cycling glasses, windproof and sandproof, color‑changing lenses, suitable for a variety of scenes, cycling, water sports, running, climbing, hiking and other outdoor activities. Specification: Item Type: Cycling Glasses Material: PC lens Size: Approx. 15 x 5.2cm/5.9 x 2.0in Glasses Leg Length: Approx. 12cm/4.7in (allowable error of manual measurement) Package List: 1 x Cycling Glasses 1 x Storage Bag 1 x Wiping Cloth 1 x Storage Box