Boulder X are popular shoes that will keep you every time you embark on a ferrata, but also on roads in difficult terrain. This is a solid hiking boot, which is very stable in the field. They have a leather upper with a rubber band, so they are resistant to abrasion when overcoming roads. The new improved design of the Vibram® Idrogrip sole guarantees perfect adhesion to the surface when climbing uphill, and the Impact Brake System in turn provides better braking force when descending. The soft 2mm EVA insert has optimal anti-shock properties. The patented asymmetric lacing is inspired by the Mythos climber model.