Replacement visors designed to fit the Simpson SD1 motorsport range of helmets. 

Note:

Clear shields are generally used for night racing or very low-light conditions

Amber shields provide a minimal amount of tinting that's ideally suited to overcast weather

Yellow shields are often used in dawn or dusk driving, as they tend to accentuate track features

Tinted shields can help eliminate glare during daytime driving

Mirrored shields block even more sunlight than tinted shields

Iridium shields provide the most protection from both sunlight and glare