A sock (400, 1100) with one or more zones (404, 406, 408, 1104, 1106, 1108) of varying numbers of layers of material, the sock (400, 1100) comprising: a tubular structure having an open end and a closed end, the tubular structure including a single layer first zone (406, 1106), a double layer second zone (404, 1104) having a second zone outer layer of material and a second zone inner layer of material, wherein the second zone inner layer of material comprises at least a first ankle portion and the second zone outer layer of material comprises at least a second ankle portion, wherein the second zone outer layer of material is folded on top of the second zone inner layer of material about a first fold line; and a double layer third zone (408, 1108) having a third zone outer layer of material and a third zone inner layer of material, wherein the third zone outer layer of material comprises a first toe portion and wherein the third zone inner layer of material comprises a second toe portion; wherein the first toe portion and the second toe portion are symmetric and coextensive with one another, wherein the third zone outer layer of material is folded on top of the third zone inner layer of material about a second fold line; and the first zone surrounding a circumference of the tubular structure and extending axially along a length of the tubular structure from a first zone division line (416, 1116) to a second zone division line (418, 1118); the second zone (404, 1104) being adjacent to the first zone (406, 1106), the third zone (408, 1108) surrounding the circumference of the tubular structure and extending axially along the length of the tubular structure from the second zone division line (418, 1118) in a direction away from the first zone (406, 1106) to the closed end, wherein material at the toe-end fold line is attached to itself to form the closed end of the tubular structure, characterised in that the second zone inner layer of material further comprises a first heel portion, and the second zone outer layer of material further comprises a second heel portion. a tubular structure having an open end and a closed end, the tubular structure including a single layer first zone (406, 1106), a double layer second zone (404, 1104) having a second zone outer layer of material and a second zone inner layer of material, wherein the second zone inner layer of material comprises at least a first ankle portion and the second zone outer layer of material comprises at least a second ankle portion, wherein the second zone outer layer of material is folded on top of the second zone inner layer of material about a first fold line; and a double layer third zone (408, 1108) having a third zone outer layer of material and a third zone inner layer of material, wherein the third zone outer layer of material comprises a first toe portion and wherein the third zone inner layer of material comprises a second toe portion; wherein the first toe portion and the second toe portion are symmetric and coextensive with one another, wherein the third zone outer layer of material is folded on top of the third zone inner layer of material about a second fold line; and the first zone surrounding a circumference of the tubular structure and extending axially along a length of the tubular structure from a first zone division line (416, 1116) to a second zone division line (418, 1118); the second zone (404, 1104) being adjacent to the first zone (406, 1106), the third zone (408, 1108) surrounding the circumference of the tubular structure and extending axially along the length of the tubular structure from the second zone division line (418, 1118) in a direction away from the first zone (406, 1106) to the closed end, wherein material at the toe-end fold line is attached to itself to form the closed end of the tubular structure, characterised in that the second zone inner layer of material further comprises a first heel portion, and the second zone outer layer of material further comprises a second heel portion.