Sock

A sock, comprising

• a sole part, which is adapted, when the sock is donned, to cover a sole of a foot;
• a toe part, the toe part together with the sole part is adapted, when the sock is donned, to completely receive a toe area of the foot;
• an instep part, which is adapted, when the sock is donned, to cover, at least partly, an instep of the foot;
• a heel part, which is adapted, when the sock is donned, to cover a heel of the foot;
• and
• an ankle fastening flap, which is adapted, when the sock is donned, to releasably fasten the sock at the ankle of the foot,
• wherein at least one of the parts of the sock is made of a stretch material,
• wherein the stretch material has only a single stretch direction, which, in the contracted state of the stretch material, runs substantially parallel to a closing edge in a cuff area of the heel part, and
• wherein the stretch direction intersects substantially vertical a cutting edge section adjacent to the leg area of the heel part.