Article of footwear incorporating a knitted component

1. An article of footwear having an upper, the upper comprising:

a knitted component having a plurality of tubular structures that define a plurality of protruding areas of the knitted component;

wherein the plurality of tubular structures includes a first tubular structure with an inlaid strand extending through the first tubular structure;

wherein the plurality of tubular structures further includes a second tubular structure with yarn sections extending across the second tubular structure;

wherein the protruding areas extend outward and away from a void within the upper for receiving a foot of a wearer;

wherein the knitted component further includes at least one second area that is continuously surrounded by adjacent ones of the plurality of protruding areas, wherein the adjacent ones of the plurality of protruding areas protrude away from the second area; and

wherein the at least one second area has an elongate shape.

2. The article of footwear of claim 1 , wherein the upper further includes a throat and the article of footwear further comprises a sole structure; and

wherein the at least one second area is elongated in a direction extending between the throat and the sole structure.

3. The article of footwear of claim 2 , wherein the at least one second area includes a plurality of second areas;

wherein the plurality of second areas are substantially aligned in the direction extending between the throat and the sole structure.

4. The article of footwear of claim 1 , wherein the upper includes a medial side, a lateral side, and a forefoot region; and

wherein the plurality of protruding areas are arranged in a group extending continuously between the medial side and the lateral side, and across the forefoot region.

5. The article of footwear of claim 4 , wherein the upper includes a heel region; and

wherein the plurality of protruding areas is absent from the heel region.

6. The article of footwear of claim 4 , wherein the at least one second area is disposed in forefoot region; and

wherein the at least one second area is elongated in a direction extending between the medial side and the lateral side.

7. The article of footwear of claim 6 , wherein the at least one second area includes a plurality of second areas; and

wherein the plurality of second areas are substantially aligned in the direction extending between the medial side and the lateral side.

8. The article of footwear of claim 1 , wherein the yarn sections extending across the second tubular structure form tuck stitches.

9. The article of footwear of claim 1 , wherein the yarn sections extending across the second tubular structure cross each other.

10. The article of footwear of claim 1 , wherein the knitted component has a first thickness at the plurality of protruding areas;

wherein the knitted component has a second thickness at the second area;

wherein the first thickness is at least two millimeters greater than the second thickness; and

wherein the second thickness is less than four millimeters.

11. The article of footwear of claim 1 , wherein a skin layer is secured to the knitted component and extends over the plurality of protruding areas and over the at least one second area.

12. The article of footwear of claim 1 , wherein the elongate shape substantially resembles a geometric shape selected from a group consisting of a quadrilateral, a parallelogram, and a hexagon.

13. An article of footwear having an upper, wherein the upper includes a medial side, a lateral side, and a forefoot region, the upper comprising:

a knitted component having an inner surface and an outer surface;

wherein the knitted component has a thickness measured between the inner surface and the outer surface;

wherein the knitted component includes a plurality of tubular structures that define a plurality of protruding areas of the knitted component;

wherein the protruding areas extend outward and away from a void within the upper for receiving a foot of a wearer;

wherein the protruding areas define at least one second area of the knitted component;

wherein the thickness at the second area is less than the thickness at the protruding areas;

wherein the second area has a length measured across the outer surface between adjacent ones of the protruding areas;

wherein the second area has a width measured across the outer surface between adjacent ones of the protruding areas;

wherein the length is greater than the width;

wherein the plurality of tubular structures includes a first tubular structure with an inlaid strand extending through the first tubular structure; and

wherein the first tubular structure of the knitted component extends continuously around a perimeter of the inlaid strand.

14. The article of footwear of claim 13 , wherein the at least one second area includes a plurality of second areas; and

wherein the plurality of second areas are substantially aligned.

15. The article of footwear of claim 14 , wherein the upper further includes a throat between the medial side and the lateral side and the article of footwear further comprises a sole structure; and

wherein the plurality of second areas are substantially aligned in a direction extending between the throat and the sole structure.

16. The article of footwear of claim 14 , wherein the plurality of second areas are disposed in the forefoot region; and

wherein the plurality of second areas are substantially aligned in a direction extending between the medial side and the lateral side.

17. The article of footwear of claim 13 , wherein the upper includes a heel region; and

wherein the plurality of protruding areas is absent from the heel region.

18. The article of footwear of claim 13 ,

wherein the plurality of tubular structures further includes a second tubular structure with yarn sections extending across the second tubular structure.

19. The article of footwear of claim 18 , wherein the yarn sections extending across the second tubular structure form tuck stitches.

20. The article of footwear of claim 18 , wherein the yarn sections extending across the second tubular structure cross each other.