When your favorite boots, sandals, sneakers, sneakers or ballerinas start to smell bad, we wonder how to clean the shoes inside. Unpleasant odor takes away the joy of wearing them. It makes us feel uncomfortable, and in the company of other people, it also makes us feel ashamed and embarrassed. Unpleasant aroma is a common problem. Footwear soaks it up when our feet sweat, and the secretion produced becomes a breeding ground for bacteria and fungi. Some of them multiply on sebum, which is also produced in this part of the body. We suggest how to refresh the shoes inside so you can still use them.