Upper for an article of footwear having a knitted component with a fused area

An upper for an article of footwear, the upper comprising:

• a knitted component having a first yarn and a second yarn,
• wherein the first yarn comprises a core with a sheath, the sheath being formed of a thermoplastic material having a melting temperature,
• wherein the second yarn is substantially free of the thermoplastic material,
• wherein the knitted component further comprises a first layer having a first surface and a second layer having a second surface,
• wherein the first layer and the second layer are secured via a knit structure of the knitted component, and
• wherein a fused area is formed by the thermoplastic polymer material on the first layer in a first region.

A method of manufacturing an upper for an article of footwear, the method comprising:

• knitting a knitted component having a first layer and a second layer, wherein the first layer comprises a first yarn having a core and a sheath, the sheath formed of a thermoplastic polymer material with a melting point, wherein the second layer comprises a second yarn being substantially free of the thermoplastic polymer material;
• heating at least a portion of the thermoplastic polymer material of the first yarn to form a fused area on the first layer;
• and
• cooling the knitted component to set the fused area.