Abstract: An undergarment for men is formed with multiple layers of fabric materials attached together. A first fabric piece (10) is formed in a brief shape to have a front part (10c), a rear part (10d), a pair of side parts (10e) extending between the front and rear parts (10c, 10d), and a bottom part (10f) extending between a lower portion of the front part (10c) and a lower portion of the rear part (10e), the front part (10c) having a first elastic thread line (14) attached by stitching or sewing to a central area of the front, bottom, and rear parts (10c, 10f, 10e) to exert a suitable elastic force a genitalia region of the wearer. A second fabric piece (20) is attached externally to the first fabric piece (10), wherein the second fabric piece has a belt-like shape extending in a circumferential direction and covering a substantial portion of the first fabric piece (10) but not covering a central portion of the front part of the first fabric piece.

Abstract: A device for opening an envelope is disclosed. In the envelope opening device of the present invention, when a user merely inserts an edge part of an envelope into a guide slot of a casing and pushes or pulls the envelope, the edge part of the envelope is precisely cut by a cutting means to a predetermined length while the edge part is supported and guided by a guide wall, which is provided inside the guide slot, and while the envelope is held and supported by a holding means such that it is prevented from undesirably moving. Therefore, the present invention makes it possible to precisely cut the edge part of the envelope to a minimum length. Furthermore, because the present invention does not require the user to pay much attention to the length of the edge part to be cut, there is an advantage in that the opening process is simplified.

Abstract: The present invention relates to pants capable of lifting sagging buttocks when a user wears them, thereby giving a sense of comfort as well as a good appearance to the user. The pants include elastic first wings, wherein each one side of the first wings is seamed with both outer edges of the upper portion of a rear fabric panel in a longitudinal direction and the other side of each of the first wings is seamed with a front fabric panel along zipper seam lines, respectively, and second wings wherein each one side of the second wings is seamed, independent from the first wings, to the portions seamed with the first wings in a longitudinal direction and the other side of each of the second wings is seamed with each end of band stitched to both upper end portions of the front fabric panel.

Abstract: A girdle underwear for men comprises a first fabric piece defined with leg openings and having a waist band and a first elastic fiber line which is stitched to center portions of a front part, a rear part and a bottom part of the first fabric piece; a second fabric piece externally attached to left and right portions of the front part and upper portions of the rear part and side parts of the first fabric piece; and a third fabric piece stitched to the first fabric piece such that the third fabric piece covers the entire front part and upper portions of the rear part and the side parts of the first fabric piece, with the second fabric piece placed between the first and third fabric pieces, and having a second elastic fiber line which is stitched to a center portion of a front part of the third fabric piece.

Abstract: The present invention relates to pants capable of lifting sagging buttocks when a user wears them, thereby giving a sense of comfort as well as a good appearance to the user. The pants include elastic first wings, wherein each one side of the first wings is seamed with both outer edges of the upper portion of a rear fabric panel in a longitudinal direction and the other side of each of the first wings is seamed with a front fabric panel along zipper seam lines, respectively, and second wings wherein each one side of the second wings is seamed, independent from the first wings, to the portions seamed with the first wings in a longitudinal direction and the other side of each of the second wings is seamed with each end of band stitched to both upper end portions of the front fabric panel.