Molded 3D helmet design rocks every kid's world Aerodynamic cooling vents Shock-absorbing EPS inner liner Nylon straps adjust for a great fit CPSC and ASTM Bike compliant If you know how hard it is to get a child to wear a helmet, then you know why we invented Raskullz Helmets. Raskullz Helmets are the first helmets that a child will WANT to wear, and parents will be happy to know they pass all CPSC and ASTM Bike safety requirements! While other helmet companies use flat printed graphics, Raskullz Helmets are the first ever to use full 3D technology to catch the child's eye. The Raskullz Shark Jaws helmet features a molded TPR 3D helmet design, aerodynamic cooling vents, a shock-absorbing EPS inner shell, and adjustable straps. Recommended for kids 5 - 8 years old (50 - 54 cm).