The Petzl Ecrin Roc helmet is a top-of-the-line safety gear designed for mountaineering, climbing, and caving activities. With a head circumference ranging from 53-63cm, this white helmet provides excellent protection and comfort for outdoor adventures. The trusted Petzl brand, coupled with the reliable Ecrin Roc model, ensures that users can focus on their outdoor pursuits without worrying about their safety. Ideal for those seeking a high-quality helmet for their climbing and caving excursions.