The bold, youthful shape of the Smith Lowdown sunglasses is enhanced with high performance details to hide your eyes and help keep things on the down low. . Medium fitmedium coverage 6 base curve tends to be more flat relative to your face front. Carbonic TLT lenses are scratch impact resistant and optically corrected to maximize visual clarity and object definition ideal for casual use. Green SOL X Mirror lens with 10% VLT Visible Light Transmission has a true color Grey lens base with multi layer Green Mirror coating to cut glare and reduce eye fatigue in bright, sunny conditions. Hydroleophobic lens coating repels water, dirt, and grease. Lenses provide 100% protection from harmful UVABC rays. Evolve Rilsan Clear frame made from renewable castor plants over 53% bio based is sport driven, durable, and superlightweight. Hydrophilic Megol nose and temple pads grip your skin to help keep the frame in place gripping power increases when introduced to moisture. Frame measurement: 56 16 135 eye, bridge, temple eye measurement is the horizontal width of the lens. Includes soft pouch for storage.