the super light Axeler technology is composed of a frame of Tech Alloy (a special alloy of harmonic steel) which increases the propulsive capacity of the mid-sole. Axeler has been engineered to insure a high stability of the foot together with an exceptional bending capacity and a perfect weight distribution so to accompany and follow the foot in its every movement. The integration of Axeler with CCb improves support to the foot arch and to the torsion control.