Comment: This thing is awesome...I have two different types of helmets (a AFX and a scorpion exo)
And it fits both with no problems..
AFX Fast Shields
Comment: I purchased both the small and large fast shields (smoke) for my AFX FX39DS helmet. The large fits better than the small because at the bottom of the shield where the nose piece is located, this is in my field of view and distracting. The large shield still is but not as much so I took the plastic protector off the nose piece and it does not interfere with my vision that way. I think that these would work better on helmets that are designed more compact and closer to your face than the motocross style 39DS is, but the large still works good enough for me and is better than wearing sunglasses. I have yet to see how well they do in really bright direct sunlight. I would like them to be a bit darker but they should be fine as they are. The discounted price of $ is well worth it. The regular price of 12.95 in my opinion is way to much.