Lace up split sole full grain leather upper and leather stacked heel. Exclusive Bloch 'sling technique' upper allowing the shoe to bend in one direction and give resistance in the other. Wick away lining for comfort and to reduce moisture. Heel notch to relieve pressure on the Achilles tendon. Shockwave heel and toe taps - Alloy casting with a new design structure increases the vibrancy of sound to create a warm and dark tone.