We have to earn our turns, and we can't do that without getting to the top. We trust Grivel for their quality craftsmanship in mountaineering equipment for almost 200 years, and we trust the Grivel Haute Route Evo Crampons to get us to the top of the summit. The Haute Route Evo Crampons are lightweight ski mountaineering crampons with steel front and aluminum rear spikes for a lighter-weight build. This crampon is only compatible with boots that have front and rear welts, and the antibott plates on the underside of the crampons reduce snow build-up so we can have traction at all times.