What are the trade-offs between lens material, thickness, and optical performance?

Collection: Cat 3 Sunglasses. "Category 3 Sunglasses" provide high-level UV protection and reduce glare, making them ideal for bright, sunny environments. Frame material: acetate; Frame color: black; Lens filter category 3; Lens color: black; Made in Spain; Includes: cleaning cloth, case ... Category 3 to 3 in mineral lens. Category 2 to 3 in PhD™ 2.0 lens. Very bright light conditions. The non-polarized lens is ideal for Driving and Everyday ... Ideal for use in the mountains or outdoors generally, thanks to their lightness. The anti-UV lenses block out 100% of harmful rays and category 3 protects you ... Category 3 to 3 in mineral lens. Category 2 to 3 in PhD™ 2.0 lens. Very bright light conditions. The non-polarized lens is ideal for Driving and Everyday ... When to wear sunglasses? Wear sunglasses outdoors, particularly: During summer. The level of UVR at noon in summer can be more than three times higher than in ... Apr 5, 2022 ... – Category 3: Blocks 82-92% of UV rays, offering appropriate sun protection. – Category 4: Blocks 92-97% of UV rays, delivering maximum UV ... Cool, casual unisex sunglasses with a soft rubberised finish. Quality anti-glare, category 3 lenses with UV400 protection. These sunglasses provide a good level of UV protection. Category 3 glasses also provide a high level of sun glare reduction. These sunglasses are good if you ... ... rated as category 3 for superior sun glare reduction. Read more. - +. Add to basket. £30.00. In stock. More details. Material, Bio-Plastic. Dimensions, 6 x 14 x ...