Durable and versatile helmet with enhanced protection for climbing and mountaineering Durable and very versatile, the BOREO helmet is suitable for climbing, mountaineering, caving, via ferrata, canyoning... Thanks to its hybrid construction, the helmet is both low-profile and head-covering. Protection against lateral, frontal and rear impact is reinforced. Optimized volume on the head and wide ventilation holes make it a comfortable helmet for all activities. Petzl - Boreo\u00ae Climbing Helmet blue