Shimano developed the S-Phyre X eyewear for high performance and professional use. The framed shield design offers unfettered view and lens quality. The shape of the frames fit perfectly in and under helmets of any size, while the rigid half-rim frame is sturdy has an easily detachable lower-rim for customization. The radius temples feature a non-slip grip for secure fit and comfort. The reversible nose pad features different front and back thicknesses for micro-fit adjustment. High quality lenses are 80% polarized to deliver the optimal balance between pavement and data screen visibility and have UV 400 protection.