Abstract: An outer sole for a footwear including a base extending from a heel portion, through a midfoot portion, to a ball portion of the footwear, a plurality of cleats disposed on the base throughout the heel, midfoot, and ball portions of the footwear, and a plurality of interconnecting portions extending from each of the cleats and extending across a portion of the base, at least one of the interconnecting portions being connected to an adjacent cleat, where the cleats and the interconnecting portions include soft curves configured to avoid debris from accumulating on the sole.

Abstract: A midsole for a running shoe is described, which shoe comprises a rear foot area (150) with a bottom heel portion (20) and an upper heel portion (142). The upper heel portion (142) is molded in one piece with the bottom heel portion and extended vertically to cover the tuberosity (68) of the calcaneus (69). According to the invention, the upper heel portion (142) is asymmetric about a vertical axis (B-B) dividing the midsole (1) into two halves wherein the area of midsole material supporting the heel on the medial side (143) of the upper heel portion (142) is larger than the supporting area of the midsole material on the lateral side (151) of the upper heel portion. This design stabilizes the foot during motion, and contributes to lowering the risk of injury during running.

Abstract: The present invention relates to a shank adapted for being integrated into a shoe sole and for mounting a heel element, wherein said shank at its heel portion is adapted to be connected to the heel element and wherein said shank comprises an upper surface pointing towards the inner shoe. At least a part of the upper surface at the heel portion is cup-shaped and adapted for receiving sole material inside the cup when integrating said shank in said sole during moulding of said shoe sole. Thereby, due to the amount of sole material present in the heel portion, the sole material covers the means used for connecting the shank to the heel element. Thereby, based on the properties of the sole material, the heeled shoe becomes comfortable and flexible at the heel portion. The invention further relates to a sole for a shoe with a cup-shaped shank and more specifically to a shoe with a cup-shaped shank.

Abstract: A method for manufacturing a multi-density shoe sole is described, the method incorporates repeated injections of sole material onto a shoe upper mounted on a last and placed in a mold. The mold has an injection chamber, moveable side frames, a vertically moveable bottom piston and a shoe sole shaping insert which is placed in the mold prior to a first injection and removed from the mold after said first injection and prior to a second injection. The entire body of the shoe sole shaping insert is placed inside the injection chamber during the first injection. The shoe sole shaping insert acts as a dummy during the first injection, and leaves after its removal a cavity which in a later injection step is filled with another sole material, either another color or another density. Also disclosed is an insert used in a mold for injection molding of shoe soles.