Now in a smaller size, Tremor™ Child keeps more kids smiling—from the biggest shredders to the smallest groms. Featuring some of the best technologies from our adult line, like In-Mold construction for reduced weight and enhanced durability, secure fit adjustments, the Tremor is ready for any ride. Integrated Mips® brain protection system. Removable visor. Quick-dry padding. Built-in bugnet. Reflective decals. In-Mold polycarbonate shell with EPS liner. Vents: 18 Vents. Universal Child fits: 18.5”–21.25” / 47–54cm. Certifications: Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older.