| 主权项 |
1. A footwear comprising:
a support member having an inner sole and an upper surface attachable to a foot, and two bulbous protuberances, a forward bulbous protuberance and rearward bulbous protuberance, each has a curved outer contour, protruding from a lower surface of said support member on opposite sides of a latitudinal midline thereof, said latitudinal midline being halfway between a calcaneus support portion and a phalanges support portion of said support member, wherein said forward bulbous protuberance, said rearward bulbous protuberance, or both is/are positioned offset with respect to a longitudinal centerline, wherein the ratio between the surface area of the inner sole to the surface area of a base of at least one bulbous protuberance of the two bulbous protuberances is less than 12:1, wherein, at least one bulbous protuberance of the two bulbous protuberances has a shore hardness of between 15 to 100 Sh A, said footwear is adapted to support the foot only by said two bulbous protuberances when said two protuberances are placed on a ground surface. |
