DESIGN: Protects head against strong forces of rotational and linear impacts by absorbing and dissipating energy from both directions, offering Rotexx rotary damping system In-mold construction binds 2 materials for strength using industrial processing High levels of comfort with Airdry® padding Built with quick slider to adjust strap position, allowing smooth and easy changes, featuring Spiderlock® UNO V-Lock divider 17 vents work together with cooling inner evacuation channels to maintain comfortable head, eliminating overheated skull cap when hot and sweating Complies with U.S. CPSC Safety Standard for Bicycle Helmets for persons age 5 and older