Buy shoes specific for a sport. When trying on shoes, be sure to wear the same socks, insoles, or orthotic inserts that you wear when playing or working out. Try on shoes in the afternoon or evening, because feet tend to swell during the day. Walk or jog around the store before buying them and then wear the shoes around the house for 1 to 2 hours to identify any areas of discomfort. It often helps to break in shoes by wearing them for 1 to 2 hours on the first day and gradually increasing use each day.
Socks can decrease friction between the feet and shoes.
Layering of socks or special double-layered socks can minimize shearing forces. Socks made from polypropylene or other new synthetic can wick moisture away from the skin more effectively than wool or cotton can, further decreasing the likelihood of blisters. You can also carry extra pairs of socks to change into if your socks become too damp. Another preventive measure is to use padded insoles to decrease friction in a specific area. Drying agents can also help.