The sole is very flexible in the toe area when it comes to bending but very rigid when it comes to striking the ball. The boots upper is designed using a single piece attached only at the heel and made using very fine synthetic fibres. Even the thickness of the tongue has been reduced as well as that of the shoelaces in order to deliver the same sensation.Made using two PU injections. The external structure is comprised of a single piece thus adding useful toughness. It is supplemented by the strength provided by the greater density obtained through internal injection. Vertical reinforcement at the shank. The biomechanical distribution of the studs provides stability.