Like the Black Diamond Vision above, the Sirocco uses a combination of expanded polypropylene (EPP) and expanded polystyrene (EPS), but with a smaller polycarbonate shell and a lower-profile design, it weighs 2 ounces less
Their automotive product line includes models such as the GP-6RC, GP-6S, SK-6, and GP-5W, as well as helmet shields, tearoffs, helmet bags, and components.
The RapidFire system lets you swap shields tool-free, which is surprisingly handy
Secondly, its been said that the top edge of the visor can distort a little, again reducing the effective viewing angle
If you only watch football during the Super Bowl then you might be really confused why some players are wearing oversized, oddly-shaped matte helmets compared to everyone else on the field