A shoe upper made of a knitted fabric with a sole cover configured to cover an entire sole portion of a wearer, and an instep cover configured to cover a portion on an instep side of the wearer, forming a foot insertion opening , the shoe upper being characterized by : a heel knitted fabric that is knitted so that its set up portion is wider than its knitting end portion , the heel knitted fabric being formed in a shape such that it wraps around a portion ranging from an Achilles tendon to a heel of the wearer with the set up portion being arranged on the sole cover side in a state in which the set up portion is folded into two portions at a center in a knitting width direction of the set up portion so that the two portions butt against each other, and the knitting end portion constituting a part, on a heel side, of the foot insertion opening ; a body knitted fabric that is knitted to follow a left edge portion and a right edge portion , in the knitting width direction, of the heel knitted fabric , and constitutes a portion of the shoe upper other than the heel knitted fabric ; and a toe side joint portion that is formed by bringing edge portions on a terminal side in a wale direction of the body knitted fabric close to a center, in the knitting width direction, of the body knitted fabric and joining the edge portions to each other, and retains a shape of a front end portion of the body knitted fabric such that it wraps around the toes of the wearer, wherein a first line (L1) obtained by bringing a left edge portion and a right edge portion , in the knitting width direction, of the body knitted fabric into butting contact with each other, and a second line (L2) obtained by folding the set up portion of the heel knitted fabric into two portions so that the two portions butt against each other are in one straight line, the first line (L1) and the second line (L2) being formed at positions on the sole cover . a heel knitted fabric that is knitted so that its set up portion is wider than its knitting end portion , the heel knitted fabric being formed in a shape such that it wraps around a portion ranging from an Achilles tendon to a heel of the wearer with the set up portion being arranged on the sole cover side in a state in which the set up portion is folded into two portions at a center in a knitting width direction of the set up portion so that the two portions butt against each other, and the knitting end portion constituting a part, on a heel side, of the foot insertion opening ; a body knitted fabric that is knitted to follow a left edge portion and a right edge portion , in the knitting width direction, of the heel knitted fabric , and constitutes a portion of the shoe upper other than the heel knitted fabric ; and a toe side joint portion that is formed by bringing edge portions on a terminal side in a wale direction of the body knitted fabric close to a center, in the knitting width direction, of the body knitted fabric and joining the edge portions to each other, and retains a shape of a front end portion of the body knitted fabric such that it wraps around the toes of the wearer, wherein a first line (L1) obtained by bringing a left edge portion and a right edge portion , in the knitting width direction, of the body knitted fabric into butting contact with each other, and a second line (L2) obtained by folding the set up portion of the heel knitted fabric into two portions so that the two portions butt against each other are in one straight line, the first line (L1) and the second line (L2) being formed at positions on the sole cover . <EOS>