kids bike helmet adopts impact-resistant ABS shell and high-density EPS inner shell to drastically reduce the impact of collision or fall. It is strong and lightweight, not only guarantees the safety of children but also ensure the comfort of wearing. the top of the bike kids helmet is designed with multiple vents based on aerodynamics and filled with breathable foam, which will reduce the child's sweating and still feel cool during exercise. skateboard helmet is sturdy and durable with high density straps and strong buckles. Rivet reinforcement on the side to withstand strong impact without falling off. Besides, scooter helmet with all the accessories are of high quality to provide the best protection for your children. Great gift for children