Sole for a sport footwear, a work footwear or a footwear for the leisure time

A sole for a shoe comprising:

• a main body having a lower layer delimiting a surface, and an upper layer,
• wherein said upper layer comprises a plurality of protuberances projecting upward, said plurality of protuberances comprising a constraining base and a free end, wherein each free end is closer to a back of the sole with respect to the relative constraining base,
• wherein in rest, said plurality of protuberances are tilted with respect to the vertical, both in a lateral section plane defined from one side to the other of the sole and in a longitudinal section plane defined from front to back of the sole,
• wherein adjacent protuberances define a transverse channel there between,
• wherein said protuberances are elastically pliable in a manner such that by applying pressure on said protuberances each of said protuberances is bent such that the respective free end bends toward the adjacent protuberance closer to the back of the sole, while when the pressure is released, said protuberances return to the initial position such that the respective free end returns in the direction of the front of the sole, releasing a forward thrust in the direction of the front of the sole,
• said plurality of protuberances being provided in at least one of a plurality of zones of the sole, the plurality of zones being defined as comprising a first zone disposed close to the front of the sole and distal from the back of the sole, a second zone disposed close to the back of the sole and distal from the front of the sole, and a third zone disposed in a middle portion of the sole between said first zone and said second zone, and
• a plurality of ribs at the surface set to come into contact with the ground during use, said plurality of ribs comprising an attachment base and a free tip, said free tips being disposed closer to the front of the sole with respect to the relative attachment base,
• wherein said ribs are elastically pliable in a manner such that by applying a pressure thereon, each rib is bent such that the respective free tip is bent toward an adjacent rib closer to the front of the sole so as to obtain a deformed condition, while when the pressure is released the ribs return to the initial position such that the respective free tip returns in the direction of the back of the sole releasing a forward thrust force.