5.5-base cylindrical lens for increased peripheral view and protection Unique lens change mechanism with V-latch to lock and unlock the lens Removable side shields for additional protection from the elements 100% UV protection (UV400) Hydrophobic and Oleophobic lens treatment repels water, dirt and oil Durable, flexible and lightweight TR90 frame Comes with a hard case, microfiber cleaning bag, clear dual replacement lenses and extra alternative fit nose pads. SUNGLASS EASTCRAFT BK/SM