Size designations are usually made for both length and width. While not all sizes of shoes are available in every width, it is possible to find many combinations of length and width. Size combinations not found in retail shops can often be specially made. Shoe stores display samples of the many varieties of shoes available for sale, and you can pick these samples up, inspect them, and if you are interested in trying them on your feet, request that the salesperson bring you similar shoes in your size. It is important to find a shoe that fits well, being neither too tight nor too loose.
Tight shoes rub against the bones of the foot, causing swellings of the skin known as blisters.
Loose shoes cause difficulty walking, making the wearer uncomfortable as the shoe slips on and off the foot with each step. Most shoe departments in good department stores and many shoe stores have trained salespeople to help you determine the right size shoe for comfortable wear, though the feeling of wearing shoes may take some getting used to. A special measuring device is placed on the floor. The sales person will ask you to step onto the device, placing your heel against a special metal backstop. Sliding guides are gently aligned against the side of the foot, and you will be asked to put normal weight onto the foot.