Based on the Sup Traction Rubber Soul CL (CL for clipless) & with an EVA midsole the Rascal offers much more than uncompromising power transmission onto the pedal: its construction combines stiffness in the longitudinal axis with flexibility in the lateral axis & the upper. This torsional construction principle helps to prevent the foot from tilting on the pedal. Special dedicated climbing & pedal zones on the tread ensure traction both on & off the pedal. In addition, the lacing, especially the Serpen_ Tie (Rascal only), makes sure the upper is perfectly closed, thus adapting to the individual needs & different shapes of the foot. Toetal_ Protection (an injected toe cap) & No-Sew_ Reinforcements absorb & dissipate the forces when the foot hits a rock or roots, protecting both the shoe & its contents. The asymmetrically shaped upper as well as the Ankle_ Pad protect the foot on the crank side while still offering full freedom of movement. The combination of heel hold (through preshaped heel & internal padding), a supportive foot bed with a 2C (=two component) insole & cushioned midsole offers outstanding comfort. Laser cut Jet_ Stream ventilation holes & fabrics ensure a balanced foot climate. Weight: 469 g per shoe (size 42, without cleat)