This unisex children's bike helmet offers excellent protection for the neck and temple areas, featuring a visor-like front edge for face protection. The adjustable size ensures a secure fit, with a rear adjustment system that accommodates ponytails. Integrated rechargeable LED rear light and reflectors enhance visibility in traffic, while four air inlets and outlets with fly nets provide good ventilation and keep insects out. Includes a chin pad. The size in centimeters corresponds to the wearer's head circumference.