Shoe shopping deficiently involves more than just you selecting shoes. For the best fit, do not select a shoe size alone. Have the sales associate measure both feet every time you are shopping for shoes. Shoes should be fit to the longest and widest foot. The ball of your foot should fit comfortably into the widest part of the shoe and you should be able to wiggle your toes in the toe box. There should be a half -inch space between your longest toe and the end of the shoe when standing upright. Most of all, the shoes should feel comfortable on both feet as you walk.