Volume: Medium, 100mm last; Cuff: Bimat PU; Shell: Bimat PU; Size Range: (24.5-30.5); Weight (half Pair): 1910g; Soles: Gripwalk Extra-Grip; Buckles: 2 Micro ALU; BOA Fit System; Tri Force BOA (Speedmachine) - With a unique blend of three different material densities and the BOA Fit System, Nordica's Tri Force + BOA Fit System constructions offer a contoured fit; The BOA Fit System, provides a performance fit engineered to enhance feel, and responsiveness while reducing pressure points by incrementally modulating the Alpine boot closure with precise micro-adjustments; Nordica's 3 Force Honeycomb construction pairs a light yet stiff frame that's especially responsive with a cuff and shell composed of a softer plastic; Nordica Grip Walk Soles is an easy walking rocker sole interface that is ready to fit into the Marker Gripwalk bindings and other similar systems available in the market; 3D Custom Cork Liner is equipped with the natural cork material which covers the heel surface, an essential part in providing lateral transmission; Originally designed for the US military, PrimaLoft insulation is permanently water-resistant; It retains its insulating and lightweight properties for warmth and comfort, even when wet; Isotherm is one of the many materials Nordica used to build Nordica's liner, well-known to keep the warmth and wicks away the moisture