Knitted components exhibiting color shifting effects

Abstract

A knitted component may include a knitted base portion located between a first non-planar structure and a second non-planar structure. The knitted base portion may include a first area located adjacent to the first non-planar structure, and the first area may include at least one course of a first base yarn. The knitted base portion may include a second area located adjacent to the second non-planar structure, and the second area may include at least one course of a second base yarn. The first base yarn may have a first color and the second base yarn may have a second color different from the first color.

What is claimed is: 
     
         1 . An article of footwear, comprising:
 an upper, comprising:   a knitted component, comprising:   a plurality of non-planar knit structures, and   a plurality of base portions interposed between the plurality of non-planar knit structures, wherein each base portion is elastic, and can shift from an unstretched configuration to a stretched configuration in response to a stretching force; and   a sole structure attached to the upper.   
     
     
         2 . The article of footwear of  claim 1 , wherein each non-planar knit structure is tubular. 
     
     
         3 . The article of footwear of  claim 1 , wherein each non-planar knit structure is formed from co-extensive layers of the knitted component that are separated to form a tubular shape. 
     
     
         4 . The article of footwear of  claim 1 , wherein the knitted component extends continuously across an instep area between a lateral side of the upper and a medial side of the upper. 
     
     
         5 . The article of footwear of  claim 1 , wherein each non-planar knit structure comprises an elongated shape oriented vertically and towards a collar of the upper. 
     
     
         6 . The article of footwear of  claim 1 , wherein, for each base portion, in the unstretched configuration, a surface of the base portion is obscured by adjacent non-planar knit structures, and wherein, in the stretched configuration, the surface of the base portion is exposed between the adjacent non-planar knit structures. 
     
     
         7 . The article of footwear of  claim 6 , wherein the surface comprises a different color than the adjacent non-planar knit structures. 
     
     
         8 . The article of footwear of  claim 1 , wherein a polymer sheet is bonded to the upper. 
     
     
         9 . The article of footwear of  claim 1 , wherein a polymer sheet is applied to a surface of the knitted component with an adhesive. 
     
     
         10 . An article of footwear, comprising:
 an upper, comprising:   a knitted component, comprising:   a plurality of lenticular knit structures, and   a plurality of base portions interposed between the plurality of lenticular knit structures, wherein each base portion is elastic, and can shift from an unstretched configuration to a stretched configuration in response to a stretching force; and   a sole structure attached to the upper.   
     
     
         11 . The article of footwear of  claim 10 , wherein each lenticular knit structure comprises a tube. 
     
     
         12 . The article of footwear of  claim 11 , wherein the tube is formed by co-extensive and overlapping knit layers of the knitted component. 
     
     
         13 . The article of footwear of  claim 10 , wherein each lenticular knit structure comprises a first side comprising a first color and a second side comprising a second color that is different than the first color. 
     
     
         14 . The article of footwear of  claim 10 , wherein each lenticular knit structure comprises a first circumferential portion comprising a first color and a second circumferential portion comprising a second color that is different than the first color. 
     
     
         15 . The article of footwear of  claim 10 , wherein, for each base portion, in the unstretched configuration, a surface of the base portion is obscured by adjacent lenticular knit structures, and wherein, in the stretched configuration, the surface of the base portion is exposed between the adjacent lenticular knit structures. 
     
     
         16 . The article of footwear of  claim 15 , wherein the surface comprises a different color than the adjacent lenticular knit structures. 
     
     
         17 . The article of footwear of  claim 10 , wherein each base portion is formed with at least two yarns that are different colors. 
     
     
         18 . The article of footwear of  claim 10 , wherein a polymer sheet is bonded to the upper. 
     
     
         19 . The article of footwear of  claim 10 , wherein a polymer sheet is applied to a surface of the knitted component with an adhesive. 
     
     
         20 . An article of footwear, comprising:
 an upper, comprising:   a knitted component, comprising:   a plurality of tubular rib structures, and   a plurality of base portions interposed between the plurality of tubular rib structures, wherein each base portion is elastic, and can shift from an unstretched configuration to a stretched configuration in response to a stretching force; and   a sole structure attached to the upper.   
     
     
         21 . The article of footwear of  claim 20 , wherein the plurality of tubular rib structures are oriented to extend towards a collar area. 
     
     
         22 . The article of footwear of  claim 20 , wherein at least a portion of the plurality of tubular rib structures are located in a throat area. 
     
     
         23 . The article of footwear of  claim 20 , wherein the knitted component extends continuously across an instep area between a lateral side of the upper and a medial side of the upper. 
     
     
         24 . The article of footwear of  claim 20 , wherein a polymer sheet is bonded to the upper. 
     
     
         25 . The article of footwear of  claim 20 , wherein a polymer sheet is applied to a surface of the knitted component with an adhesive. 
     
     
         26 . The article of footwear of  claim 20 , wherein the knitted component integrally extends from an instep area to a collar area. 
     
     
         27 . The article of footwear of  claim 20 , wherein a tensile element is inlaid through at least one of the plurality of tubular rib structures. 
     
     
         28 . The article of footwear of  claim 20 , wherein the knitted component comprises multiple layers that are overlapping.