You can\'t nail the line if you can\'t see it. Smith Fuel V.1 mountain bike goggles are built for dusty trails or full on mud season with a sealed frame and two-layer face foam. One mirrored and one clear lens are included so you can rock whatever the conditions require. Both lense options are built with posts so you can use them with roll or tear-offs for debris-free vision.Special mirror coating provides maximum glare reduction with excellent visibility. Best suited for bright conditions. 100% protection from harmful UVA/B/C rays.VisionCylindrical Carbonic-x lens for clarity and impact resistance with built-in Airflow technology for active ventilation.Roll/tear-off compatible lens with in-lens tear-off posts for muddy conditions.Fit / IntegrationDesigned for ultimate integration with Smith helmets for maximum comfort, venting and storage convenience.Ultra-wide silicone-backed strap stays put.Extended face foam for a snug, comfortable fit.Medium fit.What\'s IncludedIncludes spare clear lens and microfiber goggle bag.