Lens No. 4 lens: 3% to 8% penetration of light (protection in daylight weather - Standard: ISO 12312-1) Anti-UV Polarized: 95% polarized light, eliminating most of the reflected light. Material: impact resistant polycarbonate. Geometric design: spherical-8 base Polarization technology Great for blocking strong glare! The lens blocks reflected light from the ground. Reduce annoying reflections and avoid glare. Please note: With polarized lenses, it may be difficult to see electronic screens, such as smartphone screens. A rainbow effect appears on the electronic screen. Frame Frame type: full frame Frame material: polyamide + rubber Nose pad material: polyamide + rubber Foot cover Material: Polyamide + Rubber Foot cover material: polyamide + rubber Size: Suitable for normal / wide face