Do Blades lens tints are optimized for road biking increasing contrasts on the road surface & helping you to spot irregularities holes & gravel in time. The anti-fog & ripel treatments help keeping fog dirt & grime off your lenses & makes water pearl off. Attention: This spare lens only goes with Do blade & not Do half Blade. Please check before ordering LENS SPECSTint: Light Yellow Lens: Zeiss Activity Specific Tint: Road Light Conditions: Bad visibility Lens Treatment: Ripel Anti-fog VLT %: 915VLT Category: 0 Tint: Black Lens: Zeiss Activity Specific Tint: Road Light Conditions: Very Sunny Lens Treatment: Ripel Anti-fog VLT %: 10%VLT Category: 3 Tint: violet (Original lens) Lens: Zeiss Activity Specific Tint: Road Light Conditions: Allround Lens Treatment: Ripel Anti-fog VLT %: 284%VLT Category: 2 Tint: Clear Lens: Zeiss Activity Specific Tint: Road Light Conditions: Low visibility Lens Treatment: Ripel Anti-fog VLT %: 90%VLT Category: 0