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 fit/medium 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. Blackout lens tint& #x97;with 10% VLT (Visible Light Transmission)& #x97;cuts glare and reduces eye fatigue in very bright/exposed sun conditions. Lenses provide 100% protection from harmful UVA/B/C 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.