Full-9's Rad Little BrotherAt just 850 grams, the Sanction is a low-profile full-face mountain bike helmet aimed at dirt jumpers and BMX riders who don’t need the more robust but heftier Full-9 or Transfer-9. The Sanction has become the choice of adults who want full-face protection but prefer a smaller size and profile. If you’re getting uplifts on a 4wd or a chairlift, go with a Full-9 or Transfer-9. But if you’re pedalling BMX or dirt jumps, this helmet will be lighter and more suited to the job.