A blisterfree fit through a lacing system that embraces the entire foot. The SALEWA “Y” is anatomically well positioned around the malleolar pads and is directly connected to the 3D locking system through power wires. It supports the heel without an impact on the Achilles tendon. The 3D locking system allows the athlete to divide the shoe into three individual lacing zones. Particularly at the forefoot, precision is crucial for a blisterfree mountaineering experience.