Climate-friendly with gorgeous bold lines, Ray-Ban Kiliane Bio-Based RB4395 Gradient Sunglasses are waiting for you to take them on your next adventure. These Ray-Ban sunglasses feature lightweight polyamide lenses which provide 100% UV protection while blocking most reflected light and blue light. These lenses also offer a gradient tint to help reduce eyestrain, transitioning smoothly from a solid color to a transparent shade of the same color.