Athletic shoe outer sole for improved traction

摘要: An athletic shoe for use on a relatively hard playing surface has an outer ground sole with grooves therein that define ribs between adjacent grooves, particularly in the toe and ball areas of sole, is characterized are generally arranged concentric curves reference to center area similarly each groove being defined by two evenly spaced walls into wall inner wall, substantially perpendicular tapered from toward bottom groove. Thus, rib side tapers perimeter sole. This design minimizes tendency particles becoming stuck soft material packed groove; so it clogging. Furthermore, arrangement bear hardest against dynamic action have thereof oriented transverse direction slipping associated effect clean contacting will stick surface.