Polarized: Through advanced lens technology, Suncloud polarized lenses filter and eliminate horizontally reflected, visually disturbing light waves known as "glare", providing superior visual clarity, clarity, color transmission and comfort.Lens: Polycarbonate material provides excellent impact resistance, optical properties, and is lightweight so you can wear it comfortably all day long to meet your athletic performance needs. 8 base lens curvatures100% UV Protection: All Suncloud lenses provide 100% protection from harmful UVA and UVB sunlight. Ideal for outdoor activities in any weather conditions.EVOLUTION ECO-FRIENDLY MATERIAL: Our proprietary Evolve material incorporates 53% bio-based materials into our injection-molded polymer sunglasses.Polarized Gray Lens Color: Polarized gray base color eliminates glare and 15% VLT to truly deliver natural color.Type of sport: snowshoeing