1.The Wrong Shoe
You probably already know that high heels aren’t the best choice. Tennis and basketball shoes also present problems. The stiffness of these court shoes helps support quick sideways movement but hinders the heel-to-toe flexibility that’s good for walking. Look for a shoe with a well-padded heel that’s light, breathable, and water-resistant. A running shoe might work as well as a walk-specific model.
If your shoes are too loose, they won’t provide the support you need. Too tight and they can rub and cause calluses or corns. They should feel comfortable in the store: roomy enough to wiggle your toes with ease but snug enough to keep your foot from sliding around. Shop later in the afternoon when your feet are slightly swollen so you get a good sense of your true size.