Patent ID: 8984773
Filing Date: 2015-03-24
Classification: A43B

Abstract:
1. An outsole for an article of footwear, the outsole comprising: an outsole body having a ground contact surface and defining adjacent grooves having a sinusoidal path along the ground contact surface, the adjacent grooves having the sinusoidal path extending from a lateral side of the outsole body toward a medial side of the outsole body; wherein the grooves are arranged to provide an edge density of between about 40 mm/cm2 and about 200 mm/cm2 and a surface contact ratio of between about 40% and about 95%; wherein each of the adjacent grooves having the sinusoidal path are intersected by a plurality of branch grooves, the branch grooves being transverse to the adjacent grooves having the sinusoidal path, the branch grooves extending in a direction that is at least one of parallel to, and between 1° and 45° with respect to, a longitudinal axis of the outsole body; and wherein the outsole body is constructed from a material selected from the group consisting of: a rubber having a durometer of between about 45 Shore A and about 65 Shore A; a rubber having a minimum coefficient of friction of about 0.9 and a durometer of between about 50 Shore A and about 65 Shore A; a rubber having a minimum coefficient of friction of about 1.1 and a durometer of between about 50 Shore A and about 65 Shore A; and combinations thereof.