The Smith Lowdown 2 polarized ChromaPop sunglasses deliver bold aesthetics and crisp optics. These glasses provide large coverage and have a 4-base curvature, which means they fit a little flatter and stand out a little more. Megol nose pads hold the lightweight Evolve frame securely in place. The ChromaPop lenses enhance color to bring out natural details of the world around you. The lenses also feature Smith's enhanced polarization that protects your eyes from harmful rays and cuts down on glare. Medium fit with large coverage for a bold look and style Enhanced polarization eliminates glare Evolve frames are lightweight and durable ChromaPop lenses enhance colors Equipped With ChromaPop Polarized ChromaPop Polarized lenses are optically tuned to give you visual comfort and impact protection with enhanced glare reduction, while also offering anti-reflective, water- and oil-resistant coatings, and 100% UV protection. Hydroleophobic - Water and Oil Proof Coating Hydroleophobic lens coating repels moisture, grease, and grime. It’s a barrier between your lenses and the world. Water will bead up and disperse without streaking. Smudges from fingerprints are wiped clean easily. Anti-Reflective (A/R) Coating Anti-Reflective coatings are vacuum-applied on the back side of the lens and will eliminate bothersome side light reflections. Evolve-eco Frames Evolve-eco frames are made of a material called Risan Clear. It is a lightweight and durable material. Most importantly it is environmentally conscious and is 53% bio-based. Megol Megol material is placed at the nose and or on the temple tips, Megol gently grips your skin to help keep the frame in place. The gripping power increases when introduced to moisture.