Year of manufacture is indicated either on the back of or inside the helmet. It is printed on a small silver sticker applied to the lower back of the outer shell. If no such silver sticker is found, look for a tag attached to either of the following location. • Back of helmet (inside): ‘TILLV.AR:2001’ indicates the helmet is manufactured in 2001. • Reverse side of inner: Applicable year and quarter are circled.