First, if you don't loosen your shoelaces for a long time, the texture of the upper will collapse. Second, the deformation of leather uppers will be more serious. Third, it is not recommended to tie your shoelaces too tightly during leisure, which will increase the pressure on your feet. Fourth, the hemming will not be loosened because it is too tight for a long time, which will eventually lead to the upper getting used to you, and it is basically impossible to change back to its original appearance. Finally, the most important disadvantage is the sense of package or.