The Dynamic Aero Helmet H1 Carbon, for inline skaters and cyclists, shows a sturdy lightweight design and is only made on demand. It allows the athlete to switch from a ventilation mode to an aerodynamic mode during the ride and achieve a drag reduction of at least three per cent. Medium in size, the helmet weighs less than 260 grams and has a removable safety rear light. It complies with both the EN 1078:2012 and the US CPSC standard.