The design of Giro's Dime children's helmet is based on the design of the adult helmet, the Quarter. Dime consists of an ABS shell with shock-absorbing EPS foam inside. Internal padding can be adjusted for a perfect Dime fit. The Dime also features eight vents to keep the Junior's head cool. However, the best thing about Giro Dime is that that he feels at home on four or two wheels so the only time your little ripper will take off Dime will be before bedtime. Yes, and dinner.