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We go down the rabbit hole when it comes to running shoe technologies, features, and lab tests. See all our in-depth guides.

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Testing process

zapatilla de running Harmony Road - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
zapatilla de running Harmony Road - 20 parameters
2. Chrissy Teigen wearing black boots while walking around NYC with daughter Luna.
zapatilla de running Harmony Road - Comparing the results
3. Allbirds Tree Flyer shoe.
zapatilla de running Harmony Road - Wear test
4. And these are their sneakers.
zapatilla de running Harmony Road - No bias
5. Salvatore Ferragamo Gancini leather sandals.