Patent ID: 7093379

Claim:
An athletic shoe sole for a shoe comprising: a sole inner surface; a sole outer surface; a shoe sole underneath portion located beneath an intended wearer's foot sole location when inside the shoe, said shoe sole underneath portion including at least one concavely rounded portion located between a concavely rounded portion of the sole inner surface and a concavely rounded portion of the sole outer surface extending through a lowermost portion of the shoe sole, said concavity being determined relative to the intended wearer's foot sole location when inside the shoe, as viewed in a frontal plane cross-section when the shoe sole is upright and in an unloaded condition; the at least one concavely rounded portion of the shoe sole being oriented around at least one of the following parts of an intended wearer's foot when inside the shoe: a head of a first distal phalange, a head of a first metatarsal, a head of a fifth metatarsal, a base of a fifth metatarsal, a lateral tuberosity of a calcaneus, a base of a calcaneus, and a main longitudinal arch; a shoe sole thickness that is greater in a heel area than a forefoot area, as viewed in a sagittal plane cross-section when the shoe sole is upright and in an unloaded condition; a lateral sidemost section located outside a straight vertical line extending through the shoe sole at a lateral sidemost extent of the inner surface of the shoe sole, as viewed in said frontal plane cross-section when the shoe sole is upright and in an unloaded condition; a medial sidemost section located outside a straight vertical line extending through the shoe sole at a medial sidemost extent of the inner surface of the shoe sole, as viewed in said frontal plane cross-section when the shoe sole is upright and in an unloaded condition; and wherein the at least one concavely rounded portion of the shoe sole has an area of substantially uniform thickness defined by said concavely rounded outer surface and said concavely rounded inner surface, and the outer surface of the shoe sole defining said area of substantially uniform thickness extends through a lowermost portion of the shoe sole and into at least one sidemost section of the shoe sole, as viewed in a frontal plane cross-section when the shoe sole is upright and in an unloaded condition.