The subject matter of this specification can be embodied in, among other things, an undergarment that includes a pant body having an anterior knit region having a first knitting pattern, a posterior knit region having the first knitting pattern, a first lateral knit region having a second knitting pattern different from the first knitting pattern, extending between the anterior knit region and the posterior knit region, and a second lateral knit region having the second knitting pattern, extending between the anterior knit region and the posterior knit region, and a gusset panel having the second knitting pattern, extending between an entirety of the anterior knit region and the posterior knit region.

The present invention provides a cotton-like knitted fabric, a polyester filament and a production method. The fabric is a weft-knitted fabric obtained by material containing at least above 45% by weight of polyester filaments; the pore area distribution of the fabric is centered on 6000 to 22000 m.sup.2 and has a statistical variability of above 2a, and the coefficient of variation of the pore area is greater than 40%. The polyester filament is formed from alternatingly arranged twist regions in a false-twist direction and twist regions in an opposite direction, wherein the twist regions in the false-twist direction have an average length of less than 0.3 cm, a coefficient of variation of length of above 60%, a diameter that is 30% to 70% of the diameter of the twist regions in the opposite direction, and a total length that is 20.0% to 40.0% of the total length of the polyester filaments.

The present invention provides a cotton-like knitted fabric, a polyester filament and a production method. The fabric is a weft-knitted fabric obtained by material containing at least above 45% by weight of polyester filaments; the pore area distribution of the fabric is centered on 6000 to 22000 m.sup.2 and has a statistical variability of above 2a, and the coefficient of variation of the pore area is greater than 40%. The polyester filament is formed from alternatingly arranged twist regions in a false-twist direction and twist regions in an opposite direction, wherein the twist regions in the false-twist direction have an average length of less than 0.3 cm, a coefficient of variation of length of above 60%, a diameter that is 30% to 70% of the diameter of the twist regions in the opposite direction, and a total length that is 20.0% to 40.0% of the total length of the polyester filaments.

The present invention provides a device (1) for locking and unlocking an elongate tubular element (2), the device comprising: a. A braided or knitted tubular locking sleeve (3) that has a first end (3a) and a second end (3b), and that has an inlet orifice (4) for allowing said elongate tubular element (2) into it, and an outlet orifice (5) for allowing said elongate tubular element (2) out of it; b. Fastener means (6) for fastening said locking sleeve (3) to a support (7); and c. Tensioner means (8) for tensioning said locking sleeve (3) along a substantially rectilinear path (L) making it possible to lock said elongate tubular element (2) inside said locking sleeve (3) between said inlet orifice (4) and said outlet orifice (5), said tensioner means (8) being deactivatable manually, and/or by using deactivation means (9), for unlocking said elongate tubular element (2) to enable it to slide inside the internal volume of the locking sleeve (3) and through said inlet orifice (4) and said outlet orifice (5).

The present invention provides a device (1) for locking and unlocking an elongate tubular element (2), the device comprising: a. A braided or knitted tubular locking sleeve (3) that has a first end (3a) and a second end (3b), and that has an inlet orifice (4) for allowing said elongate tubular element (2) into it, and an outlet orifice (5) for allowing said elongate tubular element (2) out of it; b. Fastener means (6) for fastening said locking sleeve (3) to a support (7); and c. Tensioner means (8) for tensioning said locking sleeve (3) along a substantially rectilinear path (L) making it possible to lock said elongate tubular element (2) inside said locking sleeve (3) between said inlet orifice (4) and said outlet orifice (5), said tensioner means (8) being deactivatable manually, and/or by using deactivation means (9), for unlocking said elongate tubular element (2) to enable it to slide inside the internal volume of the locking sleeve (3) and through said inlet orifice (4) and said outlet orifice (5).