Louis Garneau took the technologies of adult helmets and incorporated them into the new Piccolo helmet to make sure it is as safe, light and breathable as any other helmet. Features : -For kids from 5 years -Adjustable size from 46 to 51cm -11 ventilation openings -Easy to use Spiderlock restraint system -Many pads inside -A net that prevents insects from falling into their hair -Rotexx technology; rotation damping system (RDS) -X-Static XT2T padding: fast drying antimicrobial material -CPSC certification