Patent ID: 6301805
Filing Date: 2001-10-16
Classification: A43B

Abstract:
A removable insole for insertion into footwear, comprising:a forefoot portion extending at least to metatarsals of a foot;a cupped heel portion including a relatively flat central portion and a sloped side wall surrounding said relatively flat central portion;a mid-foot portion connecting together said forefoot portion and said heel portion, said mid-foot portion including a medial arch portion defined by an extension of said sloped side wall, and said forefoot portion, heel portion and mid-foot portion formed from a unitary resilient material; anda shell that extends along an underside of said insole, said shell extending under said medial arch portion and said side wall, said shell having an opening beneath said relatively flat central portion of said cupped heel portion and a gap at a rearmost end of said shell so as to define flanges on opposite sides of said insole at said heel portion, and said shell being made of a resilient material that is stiffer than said unitary resilient material, wherein said unitary resilient material extends out through said opening in said shell, and includes a recess at an undersurface thereat with a plurality of first protuberances in said recess, said first protuberances forming spaced apart spring walls and said first protuberances having lower edges generally coplanar with a lower surface of said heel portion.