Designed for kids, by kids (at heart), the Thousand Jr. Collection has everything your child needs to stay safe and express their unique style on the road. Made to empower kids to dream big, express themselves, and create their own world, the collection is customizable, safety-certified, and designed to grow with your child for years of fun and safe riding ahead. Includes the Thousand Jr. pack of removable, reflective stickers to encourage creativity. Safety certified for biking, roller skating, and skateboarding in North America and Europe. Dial fit system allows for precise adjustments and enables helmet to grow with your child. Soft nylon straps for comfort and durability. One-hand, no pinch magnetic fastener. 6 vents and interior cooling channels for active ventilation. Lightweight helmet at 390 grams. Fits head sizes ranging from 49cm to 53cm.