The Thousand Heritage Helmet will make sure you are protected while riding without cramping your style. Dual-certified for skateboarding & cycling: CPSC, ASTM F1492, CPSC, CE EN1078 Secret PopLock for securing your bike helmet with your lock Utilitarian nylon straps Integrated dial fit system for precise adjustments One-handed magnetic fastener 7 vents with internal channeling A built-in low-profile visor Lightweight at 410g (S), 460g (M) 490g (L)