The Giro Tremor MIPS Mountain Bike Helmet is the youth helmet that offers all of the features of a full size helmet. Designed with the gold standard Multi-Directional Impact Protection System (MIPS) which protects against rotational forces and an in-mould construction full polycarbonate hard shell for the ultimate level of protection. The lightweight design allows little shredders to dominate off-road in comfort thanks to the Roc Loc adjustable fit system and quick dry padding. This helmet meets CPSC Bicycle standards and with MIPS technology" parents and kids can be confident in the safety of the helmet. The Giro Tremor MIPS Mountain Bike Helmet is great value for a youth helmet" everything that the big guys and girls get just in a small custom youth fit.