Petzl blew the climbing community away with the first generation of the Sirocco. Like the Grigri, climbers were blown away by the helmet's comfortable convenience and reliable safety. And just like the Grigri 2 and Grigri +, the new Sirocco Helmet is now even safer and more convenient than before. A hybrid of sorts, the Sirocco now features a polycarbonate crown to handle falling rocks a little better, while the expanded polypropylene foam takes the impact when you go for the whip.