A helmet should fit snugly to maximize protection, but the helmet should still fit comfortably. Helmets are adjustable for a precise fit with certain helmets offering multiple adjustment points. Face masks must be the same size as the helmet. Correct helmet sizing is imperative to maximize protection. Face masks must be worn with clips on the side of the helmet to allow the mask to protect the jaw. Without the clips, the mask has no stopping point when you get hit in the face, so the jaw is susceptible to injury.