Petzl A42 1W1 Elios, colour white, lightweight, durable low profile sports helmet designed for climbing, mountaineering, caving, canyoning, via ferrata & vertical sports using similar techniques. This helmet is easy to adjust, comfortable and well-ventilated. Adjustable headband 48cms - 56cms. EN12492 & UIAA. Weight 280g. Compatible with VIZION face shield, supplied separately. Headlamp attachment is via four optimally placed clips, supplied separately. Available also in size two (headband 53cms