Consumer Reports sent nine men and women on the road. These testers ran more than 1200 miles to test running shoes.

The tests covered all the big name brands, including Nike, New Balance, Asics, and Adidas, costing between $80-120.

Also in the tests-shoes from Target for around 30 dollars called Champion.

They used a device that measures flexibility. It turns out the inexpensive shoes proved just as flexible as some of those that cost a whole lot more.

Other tests measured cushioning and stability.

"The least expensive shoes did okay for cushioning and stability, but they weren't the best rated." said Consumer Reports Peter Anzalone.

Another test checks breath ability-important if your feet sweat. Testers dampen socks, put them in each shoe and leave them in a climate-controlled chamber for four hours. Weighing the shoe before and after shows how much water has evaporated.

The inexpensive shoes were not very breathable.

When all the testing was done, top ratings for both men and women went to Nike's Air Zoom Vomero Plus Two, which sell for $120. They're the only shoes tested that got an excellent score for cushioning.

But no matter what shoes you buy, what's most important is that they fit correctly. Consumer Reports recommends shopping at a specialty store with experienced sales help.

If you have a pair of well-worn running shoes, Consumer Reports recommends taking them with you to the store. The wear pattern on the shoe can help the salesperson get the right shoe for the way you run.