If your workout shoe doesn't fit right, then your workout won't feel right. Get a good shoe and you'll have solid footing for all of your exercise needs. What determines a good shoe? Try these six things on for size.

Anchor For Your Ankle

The area around your ankle, called the anchor collar, should be heavily padded to prevent twists and blisters.

The Deal For Your Heel

Go for a snug fit around your heel and a high Achilles notch, the slight dip at the top of the shoe's heel, to support your foot and prevent it from sliding forward.

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A new study shows that the insoles so many people buy to help ease back pain may not be doing a thing for them. When researchers reviewed a total of 6 different studies including over 2,000 people they found no evidence that shoe insoles do anything to help or prevent back pain. At all.

Basically they found that although insoles are not completely worthless (they do still cushion the foot, and they have helped many people with many issues) as a general rule they are prescribed for the wrong reasons. Sore feet? Sure. Back pain? Not so much.

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