SEMPRE use the Twist Tech closure system with ergonomic dial and high-strength laces for micrometric adjustment of the fit. The Tension Wrap System TWS 2.0 evenly distributes pressure across the micro-perforated PU upper with TPU reinforcements. The nylon-carbon composite sole with a stiffness index of 7.0 features a directional ventilation channel, rubber toe and heel, wide metatarsal platform, and 5 mm adjustable titanium alloy nuts. Weight: 276 gr in size 42 Suitable with 3-bolt system