Before You Buy Running Shoes, Take a Look at New Shoe Technology

ABC News' Becky Worley checks out some of the hottest new sneakers.
2:11 | 12/12/14

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Transcript for Before You Buy Running Shoes, Take a Look at New Shoe Technology
Also in the heat index, one of the hottest holiday gifts of the season. More running shoes are sold than any other time of the year. With so many options, which pair is right for you? Becky Worley is on the case. Reporter: The newest kicks for runners, stand back. Shoe technology has gotten really unusual. Take these from Adidas, called spring blades. Whoa. Then there's the ultra drops. A wide toe box that lets your foot supply naturally. And finally the hoko 1s. Lots of cushioning. It's like having a pair of heels on. To determine which were right for me, I head to the Uc San Francisco orthopedic lab. They will watch me run and video tape me. First thing you notice, you're right on the forefoot. Reporter: And my pony tail is swinging appropriately. Yes. Reporter: And I run I my toes. First the spring blades. This doesn't feel right. It feels like I'm running on nothing. I have no cushion, my toes hurt. These shoes are better for mid-foot runners. You might be trying to hold yourself more firm as you're running with the shoes on. Reporter: I look more upright? I agree with that. Reporter: And the hoko 1s, forced me to strike on the heel in mid feet. That's not natural for me. This is where effects of footwear can change mechanics. Reporter: And the ultra drops. They look extra big and rounded in the front and have a relatively low heel, but they feel natural to me. You're landing right on the front half of your foot. This is kind of your natural running form. Reporter: And that's the point. Running shoes are really personalized these days. Any one of these shoes may be great for you. How do you decide? A lot of the running speci specialty stores, talking to other people. Trial and error. Run in them, make sure they're comfortable. Reporter: For "Good morning America," Becky Worley, Alaska, San Francisco.

This transcript has been automatically generated and may not be 100% accurate.

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