At just 850 grams, the sanction is our low-profile full-face helmet aimed at dirt shredders and bmx riders who don't need the more robust 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 riding a chairlift, go with a full-9 or transfer-9. But if you're pedaling bmx or dirt jumps, this helmet will serve you well.