The present disclosure provides a sock comprising a leg portion, and an elastic band portion coupled to the leg portion, wherein the band portion is knitted using only a covering yarn, wherein a bottom of the band portion is coupled in an integrated manner to a top of the leg portion via knitting, wherein the band portion has inner and outer portions, wherein the band and leg portions are knitted with each other such that each of first loops of outer and inner yarns of the leg portion passes through and hooks on both of first and last loops of the band portion, and, thereafter, the covering yarn is cut, and, then, the leg portion is continuously knitted using the outer and inner yarns thereof.

Methods for making invisible-type socks are provided. Such methods include steps of manufacturing using a circular knitting machine with latch needles, a decreased knitted heel portion, forming a rear part of an opening or mouth for the introduction of a foot, an intermediate body portion, manufactured in continuation of the heel portion and forming a front part of the opening or mouth, and a toe portion, manufactured in continuation of the intermediate body portion; and sewing to one another respective end edges or selvedges of the intermediate body portion and the toe portion. Additionally, the circular knitting machine is supplied with a continuous yarn made of an adhesive synthetic material, in particular silicone, having a count within a predetermined range.

Methods for making invisible-type socks are provided. Such methods include steps of manufacturing using a circular knitting machine with latch needles, a decreased knitted heel portion, forming a rear part of an opening or mouth for the introduction of a foot, an intermediate body portion, manufactured in continuation of the heel portion and forming a front part of the opening or mouth, and a toe portion, manufactured in continuation of the intermediate body portion; and sewing to one another respective end edges or selvedges of the intermediate body portion and the toe portion. Additionally, the circular knitting machine is supplied with a continuous yarn made of an adhesive synthetic material, in particular silicone, having a count within a predetermined range.