Athletico Physical Therapy
When looking at flip-flops, select a pair that you can’t wring like a wash cloth when you twist it. A stronger sole that provides some support for the arch of your foot helps keep all your joints from your knees to your back aligned.
For heels, look for rounded toes and leather soles. Gravity crams your toes forward in heels, a problem made worse when the toe box comes to a point. Leather soles will prevent your foot from slipping forward as much, and a round or square toe box gives your toes room to move, minimizing the chance of hammer toes, bunions, calluses, etc.