The high-flying MTR 201 Pro has a gripex Sonar II sole, whose rounded edges create a completely different running experience. The inner rubber blend is an extremely adhesive sticky rubber with exceptionally high abrasion resistance. This alpine performer is also made from very robust & abrasion-resistant polyamide fabric, which is extremely light & features Mammut's proven & patented Base Fit & Rolling Concept technologies. The wedge is made from ultra-lightweight injected EVA IP. The cushioning Strobel midsole, which runs the entire length, also functions as a stone protector. The Ventech lining, which is used in the forefoot area, ensures rapid moisture absorption, drying & therefore climate optimization.