Pants String

I tried a life hack to make the pants string adjustable. I'm not great at explaining, so I'll post a link to an online article. The image is also a screenshot from there. (If you search for "how to tie pants string," you'll find many articles and videos with the same method) https://ameblo.jp/vivi-0105-vivi-y/entry-12625215506.html They said pulling the knot would loosen it, but it loosened just by pulling the waistband of the pants without touching the knot, which was quite convenient. However, if the holes on the left and right where the string comes out are close together, there isn't much room to spread the string, so it's difficult to loosen them casually.