Shimano CE-S60X-PH Photochromic Sunglasses. With their enhanced airflow, protection, and adjustability, the Shimano CE-S60X-PH Photochromic Sunglasses are ideal for any kind of riding. Included is a set of Shimano’s Photochromic Clear lenses that adjust to changes in light conditions. The lenses stay clear in low light and turn gray when it’s bright. Therefore, throughout the day there’s no need to change lenses. They’re also perfect for long rides when the weather re, throughout the day there’s no need to change lenses. They’re also perfect for long rides when the weather can change suddenly and when light conditions vary from dawn to dusk. And the lens hue isn’t the only aspect of these glasses that can change to meet conditions as the S60X model features an adjustable lens angle. Ordinary eyewear is designed for daily usage and therefore designed for downward looking eyes. However, cyclists have to look upwards when they ride the bike, especially on a bike with a more aggressive racing-oriented position. Shimano created a special lens angle adjuster which makes it possible to adjust your eyewear to an ideal fit in all situations. The sunglasses’ frames are constructed of Grilamid TR90 nylon to ensure they’re lightweight, strong, and durable while an adjustable nose-pad plus temples ensures a custom, precision fit all day long.