Grivel G12 New-Matic EVO semi-automatic jacks are made of chrome-molybdenum steel, which is characterized by high resistance. The cleats are compatible with specially adapted footwear, but they adapt better than, for example, articulated cleats. The optimal stiffness of the structure is suitable for steep ascents with climbing elements. The semi-automatic Grivel G12 New-Matic EVO crampons provide excellent grip thanks to a design consisting of 12 spikes that penetrate ice or snow perfectly. The two front spikes are positioned horizontally and establish a solid point on steep climbs. The cats are equipped with so-called antibotts – snow ejectors that prevent its accumulation. The Grivel G12 New-Matic EVO semi-automatic crampons are equipped with a yoke that makes them compatible with EU size 36-47 shoes.