Buy with a pair of Grivel Airtech Crampons for just £94.50 (Save 30%)--> A modern hybrid mountaineering boot, the Ribelle CL is designed for mountain walking and Via Ferrata, or it will take a C2 (semi-automatic) crampons with a flex bar for crossing glaciers or snowy ascents. The Ribelle family are a new generation of boots designed to allow people to move faster than conventional mountain boots. Ribelle Comfort Leather Mountaineering Boot