The Old School Cert was modified from the original 1973 Full-Tec and features a retro shape that sits low on your head, offering great impact protection. The premium heat-sealed liner keeps you comfortable and the 11 open vents keep you cool. The more round shape practically molds to any shape head. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older SHELL • High-Impact ABS LINER • EPS VENTS • 11 Open Vents INTERIOR • Heat-Sealed Premium Pads FIT • 5 sizes - XS, S, M, L, XL CERTIFICATIONS • ASTM 1492/1447, AS/NZS 2063:2008, CE 1 Protec Old School Certified Helmet Gloss White