The Retina Big comes with race specific tints, made of optical grade PC/CP that is anti-fog and anti-scratch treated to promote vision and resistance. The PU frame conforms to different face shapes and maintains its flexibility even in cold temperatures, and the triple layer face foam and fleece ensures a comfortable fit. Compatible with all Retina Big lenses. Features:
• Ripel – Hydrophobic and oleophobic treatment.
• Optical grade polycarbonate (PC) outer lens.
• Cellulose propionate (CP) inner lens.
• Anti-scratch/Anti-fog treatment.
• Triple-layer face foam.?
• Silicone grip on the inside of the strap.?
• Lenses by ZEISS