Patent ID: 8549772

Claim:
A footwear construction comprising: an outsole having a sidewall that defines a total length of an inside perimeter of the outsole; and an upper coupled to the sidewall around the inside perimeter of the outsole; wherein the sidewall includes an indented lip for engagement with the upper, and wherein the sidewall of the outsole overlaps an exterior side of the upper over a surface area which has two dimensions, a length and a width; wherein the length of the overlapping surface area extends horizontally along the inside perimeter of the outsole; wherein the width of the overlapping surface area is substantially perpendicular to the length of the overlapping surface area; wherein the two dimensions are set to comply with a requirement: a value of the width of the overlapping surface area exceeds a preset threshold over the length of the overlapping surface area for no more than 40% of the total length of the inside perimeter of the outsole; and wherein the indented lip of the sidewall is positioned to secure the upper to ensure that the overlapping surface area is in compliance with the requirement.