Runners are known for their intense dedication and willingness to go to extreme lengths (like 26.2 miles) for their sport. The folks at Road Runner Sports take that same extreme into the world of retail, offering runners a deal they won't find anywhere else on earth: run in the shoes for 90 days, and If they're not working, send them back for a different pair. No questions asked. No hassle. Its this incredible knack for customer service that has transformed Road Runner Sports from a garage in Del Mar, California to the largest running and walking store in the world.