A sock ( 1 ) comprises a heel part (H) between a tubular leg part (L) and a tubular sole part (S), which comprises mesh-number varying regions (V 1 -V 6 ) arranged along a knitting axis (K), and tubular regions (C 1 -C 5 ) arranged between the mesh-number varying regions. The mesh-number varying regions include an upper region (V 1 ), a lower region (V 6 ), and intermediate regions (V 2 -V 5 ). The number of courses of the upper region (CV 1 ) is smaller than the number of courses of the lower region (CV 6 ) and the number of courses of the intermediate regions (CV 2 -CV 5 ). The mesh-number varying regions are constituted by mesh-number increasing regions (V 1 , V 3 , V 5 ) and mesh-number reducing regions (V 2 , V 4 , V 6 ) alternatingly arranged along the knitting axis. The number of courses of the tubular regions (CC 1 -CC 5 ) is smaller than the number of courses of the mesh-number varying regions (CV 1 -CV 6 ).
1. A sock formed by circular knitting or flat knitting along a knitting axis, the sock comprising:
a leg part;
a sole part; and
a heel part between the leg part and the sole part, the heel part comprising:
a plurality of mesh-number varying regions arranged along the knitting axis, wherein each of the plurality of mesh-number varying regions is defined as only a mesh-number increasing region or a mesh-number decreasing region, and wherein the mesh-number increasing regions and the mesh-number decreasing regions are alternatingly arranged along the knitting axis;
a plurality of tubular regions arranged such that each one of the plurality of tubular regions is interposed with a corresponding pair of the alternating mesh-number increasing regions and the mesh-number decreasing regions, the plurality of tubular regions including first ones and second ones, such that each of the first ones have a leg side edge abutting the mesh-number increasing region and a sole side edge abutting the mesh-number decreasing region, and each of the second ones have a leg side edge abutting the mesh-number decreasing region and a sole side edge abutting the mesh-number increasing region, and
the plurality of mesh-number varying regions further including:
an upper mesh-number varying region connected to a lower edge of the leg part;
a lower mesh-number varying region connected to an upper edge of the sole part; and
a plurality of intermediate mesh-number varying regions between the upper mesh-number varying region and the lower mesh-number varying region,
wherein the number of courses of the upper mesh-number varying region is smaller than each of the number of courses of the lower mesh-number varying region and the number of courses of the intermediate mesh-number varying regions, and
wherein the number of courses of the tubular regions is smaller than the number of courses of the mesh-number varying regions.
2. The sock according to claim 1 , wherein the upper mesh-number varying region is constituted by a mesh-number increasing region and the lower mesh-number varying region is constituted by a mesh-number reducing region.
3. The sock according to claim 1 , wherein the number of the mesh-number varying regions is six and the number of the tubular regions is five, or the number of the mesh-number varying regions is eight and the number of the tubular regions is seven.
4. The sock according to claim 2 , wherein the number of the mesh-number varying regions is six and the number of the tubular regions is five, or the number of the mesh-number varying regions is eight and the number of the tubular regions is seven.