Abstract: Shoe sole comprising a main structure that defines a tread surface and opposing sides of the sole, said main structure comprising a top layer facing, in use, the sole of the foot, a bottom layer facing the ground, and a reinforcing member interposed between said top and bottom layers. The reinforcing member is made of a material with greater rigidity than the bottom layer, and comprises a front portion and a rear portion joined together by a bridging section. A forefoot through opening is defined on the front portion and a hindfoot through opening is defined on the rear portion, in such a way that a midfoot through opening is defined between the bridging section and the bottom layer.

Abstract: A sole having respective forefoot, midfoot and backfoot parts, which are contiguous in a longitudinal direction running from toe to heel, and including a stiffening shank extending in the longitudinal direction from toe to heel. The shank extends over a predominant portion of the longitudinal development from the backfoot part to the forefoot part, and has areas of different flexibility alternating along the longitudinal development, the flexibility of these areas being progressively variable in a substantially continuous manner between one area and the contiguous areas.

Abstract: Shoe sole (100) comprising a main structure (10) that defines a tread surface (1) and opposing sides (11, 12) of the sole, said main structure (10) comprising a top layer (16) facing, in use, the sole of the foot, a bottom layer (15) facing the ground, and a reinforcing member (5) interposed between said top (16) and bottom layers (15). The reinforcing member (5) is made of a material with greater rigidity than the bottom layer (15), and comprises a front portion (52) and a rear portion (54) joined together by a bridging section (53). A forefoot through opening (20) is defined on the front portion and a hindfoot through opening (40) is defined on the rear portion, in such a way that a midfoot through opening (30) is defined between the bridging section (53) and the bottom layer (15).

Abstract: A sole having respective forefoot, midfoot and backfoot parts, which are contiguous in a longitudinal direction running from toe to heel, and including a stiffening shank extending in the longitudinal direction from toe to heel. The shank extends over a predominant portion of the longitudinal development from the backfoot part to the forefoot part, and has areas of different flexibility alternating along the longitudinal development, the flexibility of these areas being progressively variable in a substantially continuous manner between one area and the contiguous areas.

Abstract: A sole for footwear, including a resilient structural member extending in a direction from toe to heel and having a tread surface, the sole having a plurality of incisions extending transversely to the toe-to-heel direction. The incisions include a first portion extending to a first depth into the sole from the tread surface and a second portion extending to a further depth into the sole from the lower outlet of the first portion. The first portion has a width, measured transversely to the longitudinal extent of the incision, which is smaller than the corresponding width of the second portion. At least the second portion of the incisions is open at the side of the sole.