Cylindrical double lens. Different lens tints and mirror colors are available to provide the best performance in different weather and light conditions, all with 100% UVA-UVB-UVC protection. Its Super Anti-Fog treatment provides extremely long-lasting clarity. Its CONTRAST BOOSTING LENS: (CBL) and NODISTORTION: technologies (available in select models) enhance contrast, clarity, and image definition.Inside the box | 1 SHRED. Nastify spare lens TINT | Different lens tints and mirror colors are available to provide the best performance in different weather and light conditions. SHRED. CONTRAST BOOSTING LENS: | Enhances image contrast and definition for all weather and light conditions.* SHRED. NODISTORTION: | Pressure regulation valve technology to provide crystal clear vision during altitude change.* *Available in select models LENS | Cylindrical double lens | 100% UVA-UVB-UVC protection | Super Anti-Fog SIZE | 164 x 94 mm | 6.46 x 3.70 in COMPATIBILITY | SHRED. Nastify CHOOSE THE PERFECT LENS