The Giro Tremor Child Helmet is designed to keep young cyclists safe and comfortable. This kids' bike helmet features a two-piece hardshell construction with a durable outer shell and a fused polycarbonate lower shell, offering lightweight yet robust protection. To ensure a comfortable fit, the helmet includes a Roc Loc Sport Mips fit system, offering one-handed adjustment and a ponytail-friendly design. Eighteen vents with internal channeling offer superior airflow and cooling, keeping your child cool during those long summer rides. With universal fit sizing, this helmet can provide a secure fit straight out of the box. Made from a blend of materials including EPS, PC, Nylon, PP, POM, PU, Polyester, and Fiberglass, it promises durability and safety for your child's biking adventures.