Sweat accumulates on the skin during physical activity, especially in closed shoes, creating an ideal environment for bacterial growth. This often leads to a persistent and unpleasant smell in sports shoes that is difficult to eliminate by washing and drying alone.
To combat this problem, I rely on bar soap. For this method you will need two bars of soap. Every time I come back from outside, I put a block of soap in each sneaker and leave it there until the next use.
This approach quickly eliminates any lingering odors. I prefer this technique because of its efficiency and the fact that it saves me from constantly washing my sneakers, which can affect their appearance and lifespan over time.
Although I read suggestions for combating shoe odor with tea bags, my attempts proved ineffective, so I went back to the trusty soap method.