A wide (2E) or extra-wide (4E) shoe can provide an extra 1/4 inch or 1/2 inch of space on each side of your foot, which can make a big difference in terms of comfort. Many people find that a wide or extra-wide shoe is much more comfortable than standard shoes. Typically, width is measured from the widest part of the shoe, which is usually the ball of the foot. If you are unsure of your shoe size, you can measure the width of your foot to find out if you need a wide or extra-wide shoe. To do this, use a ruler to measure the width of your foot at the widest part.