The shoe upper is tubular and has a toe, a body between the toe and the heel and including a tongue, heel, and a top line. The body includes the tongue covering the central part of instep, the right portion at the right side of the tongue covering the right side of instep and the right half of the sole, and the left portion at the left side of the tongue covering the left side of instep and the left half of the sole. The tongue and the right portion are connected by the right plating area 14 having a knitting width of two or more stitches knitted by plating-knitting where knitting yarns for the tongue and the right portion are overlapped with a constant relation of the front and the rear and made into stitches. The tongue and the left portion are connected by the left plating area 15 having a knitting width of two or more stitches knitted by plating-knitting where knitting yarns for the tongue and the left portion are overlapped with a constant relation of the front and the rear and made into stitches. The tongue and the right and left portions may be connected firmly on a knitting machine.

A knit sleeve for providing thermal protection about an elongate member contained therein and method of construction thereof is provided. The sleeve includes a knit inner wall with opposite edges extending lengthwise between opposite ends and a circumferentially continuous tubular outer wall knit integrally with the inner wall. The outer wall bounds a central cavity that extends lengthwise along a central axis between open opposite ends of the outer wall. The opposite edges of the inner wall are substantially parallel to the central axis and are wrappable toward one another to form the inner wall as being tubular. The circumferentially continuous tubular outer wall is configured to be everted about the wrapped inner wall to circumferentially surround and protect the inner wall from abrasion and provide the sleeve with a dual layer wall.

A knit sleeve for providing thermal protection about an elongate member contained therein and method of construction thereof is provided. The sleeve includes a knit inner wall with opposite edges extending lengthwise between opposite ends and a circumferentially continuous tubular outer wall knit integrally with the inner wall. The outer wall bounds a central cavity that extends lengthwise along a central axis between open opposite ends of the outer wall. The opposite edges of the inner wall are substantially parallel to the central axis and are wrappable toward one another to form the inner wall as being tubular. The circumferentially continuous tubular outer wall is configured to be everted about the wrapped inner wall to circumferentially surround and protect the inner wall from abrasion and provide the sleeve with a dual layer wall.