A knit component of an article of footwear having a longitudinal inlay stretchable element is described. The longitudinal inlay stretch element extends along a direction perpendicular to the direction of the knitting component knitting process or at an angle to the direction of the knitting component knitting process. The method of knitting a knitted component is to hold a stretch element with a loop using a needle of a knitting machine while putting a certain amount of stretch element into an auxiliary element of the knit component and forming the rest of the knit component Inserting the telescopic element vertically. Since the knitted component is formed along the horizontal direction on the needle of the knitting machine, the elastic element is unwound from within the auxiliary element to form a longitudinal inlay elastic element. [Selection] Figure 12
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