The higher the heel, the greater the pressure on the front of the foot. The last is the part of the shoe that curves in slightly near the arch of the foot to conform to the average foot shape. This curve enables you to tell the right shoe from the left. The material from which the shoe is made can affect fit and comfort. Softer materials decrease the amount of pressure the shoe places on the foot.
Stiff materials can cause blisters.
A counter may be used to stiffen the material around the heel and give support to the foot. Because your feet may vary in size, ask the salesperson to measure the length and width of each of your feet. Your feet expand when bearing weight, so stand while your feet are being measured. Because swelling during the course of the day can enlarge your feet, have your feet measured at the end of the day. The shoes you buy should be fitted to your longer and wider foot.