Wiley X Alfa Features The Wiley X Alfa uses a flatter 6-base lens curvature compared to many sport sunglasses which allows the frame to accommodate a higher prescription range for wearers who need corrective lenses without sacrificing the same ANSI+ rated protection and optical clarity found across the Wiley X sunglass lineup. The polarized Bronze Mirror lenses are made from polycarbonate a material chosen for its impact resistance and light weight compared to glass lens alternatives. Polarization reduces glare off water pavement and other reflective surfaces improving visual comfort and clarity during extended outdoor use. The lenses block 100 percent of UV rays for complete eye protection in bright conditions. The frame is constructed from Triloid Nylon in a sleek rectangular shape sized for a medium to large fit offering a flattering comfortable profile rather than a bulky purely tactical appearance. Finished in a Gloss Crystal Light Olive color the frame pairs a durable lightweight material with a distinctive look suited to both outdoor recreation and everyday wear. Removable swivel side shields can be attached when additional peripheral protection is needed such as during shooting sports or work environments with debris hazards and removed for a more casual everyday profile otherwise. Outdoor enthusiasts and shooters alike get a versatile ANSI+ protective pair of sunglasses that adapts to the task at hand. Wiley X Alfa Specifications Manufacturer: Wiley X Model: Alfa Size: M/L Frame Material: Triloid Nylon Frame Color: Gloss Crystal Light Olive Lens Type: Polycarbonate Lens Color: Bronze Mirror Polarized: Yes UV Rating: 100% Available At: GrabAGun