1. After picking about 46 stitches (the number of stitches can be automatically changed according to the thickness of the big foot and the thread), weave 30 stitches back and forth (the number of stitches can be automatically changed according to the thickness of the big foot and the thread).

2. Then, start knitting the vamp with stitches. After knitting to 13 stitches, change the thread (green line) to return to knitting, and add 1 stitch to the edge in each row.

3. Weave the shape like a leaf, then change it to (yellow line), pick up the needle (green line), and continue to weave all the needles back and forth, which is the shape below.

4. Then, according to the above method, gradually weave the vamp into three green leaf shapes, and then weave the center position of the vamp (the green center line is about 40 stitches), as shown in Figure 2 below.

5. After knitting, fold in half from the middle, merge the head and tail (behind the feet) into the upper, then count the same number of stitches and knit another upper in the same way.