Petzl Ecrin Roc Helmet

There is a reason the Ecrin Roc is the most rented helmet in the world: it is nearly indestructible (more than we can say for our noggins), extremely adjustable and unquestionably comfortable. Yeah, there are less expensive, lighter-weight options out there, but the Petzl classic has been relied upon countless times and for numerous years by guides, clients, kids, etc. Its dial adjustment system works for all type of head shapes: mongoloid, egghead, pinhead, and so on. Combine it with a bicycle-style helmet, and your quiver is good to go for all adventures.