UV400 Photochromic Cycling Glasses Facing the most difficult exercises and events, their unique quality and style. This model is focused on sports, but has a hybrid design and can be used casually. With UV400 protection. In addition to a single lens, it also has maximum visibility. Photochromic-1 lens configuration: 1*photochromic Glasses -UV400 treatment lens (UV-A and UV-B protection) -Smoked multilayer lenses (high impact resistance)