TONY HAWK Helmet Outer shell made of rugged ABS surface which is also resistant to scratches and dents - so this lightweight helmet looks great after hard use Made of specially formulated EPS foam (not too hard, not too soft) to help protect your head from multiple low impacts and single high impacts Made with 13 breathable vents to keep you cool all day without compromising safety Sturdy but soft nylon webbing on chin strap adjusts for custom fit, safety and comfort The two size options will ensure you find a size that fits your head properly