Shoes are not as easy to clean as clothes. Using a washing machine is definitely not a good option. It’s likely that you’ll hand wash your shoes to clean them. The part of the shoe that always gets dirty is the sole. The sole is the part underneath the shoes and it separates the feet from the ground. It also protects the feet from dangerous obstacles like rocks, mud, dirt, snow, and even sharp and pointed objects. These facts justify how the sole of our shoes matter.