The Giro Tremor MIPS Bike Helmet brings a cool style that gives riders reliable protection and comfort that will always be your little riders go to. This helmet features the latest in head protection technology, an easy-to-adjust fit system, and 18 breathable vents. The interior has an In-Mold construction which helps reduce weight and enhances durability, plus a Roc Loc Sport system for an adjustable, secure fit. This helmet integrates Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts. The Giro Tremor MIPS Bike Helmet will be your little one's favorite way of staying protected in all their bike rides