Who is Snell / SFI / FIA?
Snell is an organization that sets standards as well as testing helmets. Snell issues SA (Special Applications, aka auto racing helmets), M (Motorcycle, Department of Transportation approved), as well as K-rated standards (karting helmets). The SFI and the FIA are two other standards organizations. The SFI rating 31.2 simply says the helmet has been tested to meet that SFI helmet standard for auto racing applications, which is similar to the Snell SA2005 rating. Usually, helmets sold in the U.S. which meet SFI 31.2 will meet SA2005, and usually they’ll be marked as such. However, keep in mind that most track organizations will specify that they want to see SA ratings, rather than SFI ratings. Though a given SFI rating may be acceptible to your organization, you should check if the organization does not specifically mention the rating in question. The default in the U.S. is for SA-ratings, which are accepted by everyone I know of. Full-Face vs Open Face This seems to be an age-old debat
