Protect your head while riding your skateboard, bike, scooter, inline skates and more! World's aggressive helmet complies with CPSC 1203 Standards for bicycle and skateboarding. OUTER SHELL Impact resistant ABS with extra lower head protection INNER SHELL Impact resistant expanded polystyrene STRAPS and BUCKLES Fully adjustable straps with impact resistant buckles VENTS 11 aerodynamic vents CPSC Complies with CPSC 1206 Recommended for ages 5 8 years old