Patent ID: 7971280

Claim:
A sock comprising: a heel portion at a longitudinally rear end portion of said sock, said heel portion having a first heel gore line formed as part of said heel portion on a first side of the sock and a second heel gore line formed as a part of said heel portion on a second side of the sock, said second side of said sock being opposite to said first side of said sock, said first and second heel gore lines having front ends, respectively, and dividing said heel portion into a heel instep portion and a heel sole portion; a toe portion at a longitudinally front end of said sock, said toe portion having a first toe gore line formed as part of said toe portion on said first side of said sock and a second toe gore line formed as a part of said toe portion on said second side of said sock, said first and second toe gore lines having rear ends, respectively, and dividing said toe portion into a toe instep portion and a toe sole portion; and a foot portion defined between a first course that connects said front ends of said first and second heel gore lines and a second course that connects said rear ends of said first and second toe gore lines, said foot portion having a first wale connecting said front end of said first heel gore line to said rear end of said first toe gore line, and having a second wale connecting said front end of said second heel gore line to said rear end of said second toe gore line, said first and second wales dividing the foot portion into a foot instep portion and a foot sole portion, wherein said heel sole portion, said foot sole portion and said toe sole portion are disposed along the longitudinal direction of said sock such that said foot sole portion is disposed forward of said heel sole portion, and said toe sole portion is disposed forward of said foot sole portion, and such that said heel sole portion, said foot sole portion and said toe sole portion together constitute a sock sole portion, wherein a bottom extension portion is connected as an insert in an area of said foot sole portion spaced apart by 18 to 36 courses from said second course in a direction toward said heel portion, and said bottom extension portion is configured such that a length of said sock from said rear side of said foot sole portion to said toe sole portion is longer than a length of said sock from a rear side of said foot instep portion to said toe instep portion, wherein a ring toe portion is connected to a rear side of said toe portion, said ring toe portion being formed by inserting reinforcement yarn, wherein a front side of said bottom extension portion is connected to a rear side of said ring toe portion and does not extend onto said sock instep portion, wherein a side extension portion is provided as an insert between said toe portion and said heel portion, and said side extension is configured such that a length of said sock on a first toe side is greater than a length of said sock on a fifth toe side, and wherein said side extension portion extends from said sock sole portion to said sock instep portion.