Outsole with bulges serving as a sound haste

摘要

An outsole has a bottom sole made of rubber or the like with ground contacting hollow bulges (3, 3') oriented downwards and arranged transversely to the longitudinal axis (A) of the sole over the sole width. An upper layer (5) that covers the bottom sole forms air chambers (4, 4') in the bulges. The bulges (3, 3') have a substantially flat treading surface (7, 7') whose size approximately corresponds to the base surface (6, 6') of the bulges at the upper layer (5, 5'). The air chambers (4, 4'9) are subdivided by a plurality of supporting walls (8, 8') into individual chambers in communication with each other.