How shoes are made and natural changes to your feet can cause you to reach for a different size. Experts explain why.

It is not uncommon for one foot to be ever so slightly bigger than the other. Or for a person to put slightly more weight on the outside of their feet than the inside. For runners and other athletes, ...

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Your feet work hard, sometimes walking thousands of steps per day. That’s why wearing shoes that fit correctly is so important. But finding the right fit isn’t just about length. Shoe width matters ...