1. Cross method:
Thread the shoelace tips straight in from the bottom (gray part) and up from the underside of each eyelet. Cross the ends of the shoelaces, and then pass through the other two eyelets respectively. Repeat this process until the laces come through the top two eyelets.
2. Up and down method:
Thread the lace tips straight in from the bottom (gray part) and down the top of each eyelet. The shoelace ends cross from below and pass through the second pair of eyelets from bottom to top, then cross from above and then insert into the third pair of eyelets. Repeat this process until the laces come through the top two eyelets.
3. Straight tie method (European style):
Insert the shoelace head from the bottom (gray part) straightly into the bottom two shoe holes from top to bottom. One end (yellow end) of the shoelace passes diagonally from bottom to top and straightly passes into another shoe hole in the second horizontal row. The other end (color end) of the shoelace goes out diagonally from bottom to top through the third row of shoe holes and goes straight into the other shoe hole. Repeat the operation, alternating the two shoelace heads.