If The Shoe Fits

Running Shoe Buying Tips
-Shop late in the day because your feet swell during the day.
-Measure your foot while standing.
-Try on both shoes with the socks you will wear.
-Buy for your larger foot (feet are rarely the same exact size).
-Allow a thumbnail's width between the shoe and your big toe.
-Choose shoes that are comfortable immediately. If they hurt in the store, don't buy them.
-Look for a moderately priced shoe. Price is not necessarily an indication of quality. Research has shown that moderately priced running shoes work just as well as expensive ones.
-Make sure the shoe matches your foot type and running style.
-Wear new shoes around the house before using them on short runs.
-Don't do a long run in new shoes. Start out with a short run and stop if you have any hot spots, which are a warning sign that a blister is on the way.
-Consider having an evaluation by a doctor, physical therapist, or podiatrist to learn your foot type. (sportsmedicine.about.com)