The winning shoe for long ultra-trails! The Womens MTR 201-II Max Low Shoe from Mammut is lightweight and has excellent cushioning. The wedge, which is made from a 22/28mm D3O EVA blend, cushions, supports and rebounds. It also provides prone and supine support as needed. This is achieved by using a stronger, more robust frame structure made from D3O, which features high rebound and softer EVA in the core with the integrated patented Rolling Concept. This competition shoe also has the aggressive gripex Sonar tech sole with integrated Sonar technology, Base Fit Advanced with improved efficiency, memo foam, VentTech and FeetMap, as well as the handy Advanced MTR Speed Lace System.