The Air Tech Evo is a technical 12-point crampon, suitable for routes with rock and ice. Air Tech, one of Grivel&';s spearheads, has been designed for ascents with both rock and ice. It has 12 short steel points, 8 of which are front and 4 rear. The position of the points is designed to keep the foot steady during ascents, descents and traverse. It adapts to any type of boot thanks to the regulation bar in the middle and to the several binding systems, cramp-o-matic, new-matic, new classic, multimatic. Equipped with the famous Grivel proactive Antibott both in the front and the rear. Easy to store in the backpack and not bulky. Perfect adherence, excellent companion for activities on ice. Activities: Mountaineering Materials/construction/technologies: steel , plastic Certification: CE EN 893, UIAA 153 Weight: 880g (31 oz) European Sizes: 35-46 Antibott: front and rear