A hair piece (1) comprises a foundation (3) having a boundary area (4) extending along a circumference (7); hairs (2) attached to the foundation; and at least one securing mechanism for securing the hair piece to natural hairs of its bearer. The securing mechanism comprises at least one slot (6) in the boundary area, which extends along the circumference and ends in the boundary area in both directions. An adhesive surface (8) extends from the slot towards the circumference. Hairs are attached to the foundation next to the adhesive surface in both directions of the circumference. A section (10) of self-adhesive hair band has an adhesive back to be glued to hairs of the bearer pulled through the slot and pressed against the adhesive surface. This section of self-adhesive hair band is permanently connected to the boundary area at that side of the slot opposite to the adhesive surface.

A skin weft with artificial hair attached thereto to provide various styling options or ample volumetric feeling. The skin weft comprises a stitched portion formed by stitching on a side edge of artificial hair composed of human hair or resin hair, a resin tape welded to a surface of the stitched portion, and a bonding component attached to a surface of the resin tape. The method for manufacturing the skin weft comprises the steps of forming a stitched portion by stitching one side edge of human hair or resin hair arranged and conveyed in the form of a sheet, and supplying a resin tape onto a surface of the stitched portion to form a bonding portion. Automatic mass production is achieved, thereby improving productivity and significantly reducing manufacturing costs. Additional means are unnecessary in the manufacturing process, thereby enabling an unskilled person to perform the task.

A hair extension, according to one embodiment, includes a section of hair having front and back sides, and an adhesive layer attached to the back side of the section of hair. The section of hair is affixed together at one lengthwise end by a pliable polymer. The affixed-together end of the section of hair is retained within the polymer, and the polymer is exposed widthwise across the section of hair on the section of hair's front and back sides. The polymer on the front side of the section of hair is sized and shaped to facilitate attachment of an adhesive layer that may be separately applied by a user or stylist. The adhesive layer on the back side of the section of hair facilitates attachment of the section of hair to natural hair of a user. Alternatively, adhesive layers may be pre-attached to both sides of the section of hair.