Upper for an article of footwear having angled tubular knit structures

An upper for an article of footwear, comprising:

• a first tubular knit structure, wherein the first tubular knit structure includes a first layer and a second layer, the first layer and the second layer being separable such that a first passage is located between the first layer and the second layer;
• and
• a second tubular knit structure, wherein the second tubular knit structure includes a third layer and a fourth layer, the third layer and the fourth layer being separable such that a second passage is located between the third layer and the fourth layer,
• wherein the first tubular knit structure extends from a biteline of the upper to a throat area of the upper,
• wherein the second tubular knit structure extends from the biteline of the upper to the throat area of the upper,
• wherein a knitted base area is located between the first tubular knit structure and the second tubular knit structure at a location adjacent to the biteline, and
• wherein the first tubular knit structure and the second tubular knit structure merge at a merged tubular area located in or adjacent to the throat area of the upper.

An upper for an article of footwear, comprising:

• a first tubular knit structure, wherein the first tubular knit structure that includes a first layer and a second layer, the first layer and the second layer being separable such that a pocket is located between the first layer and the second layer;
• and
• a knitted base area located adjacent to the first tubular knit structure on at least one side of the first tubular knit structure,
• wherein the first layer of the first tubular knit structure includes a first yarn,
• wherein the second layer of the first tubular knit structure includes a second yarn, and
• wherein the first yarn is substantially excluded from the knitted base area.