900+ shoes reviewed and cut in half

13 currently testing

14 bought and to be tested

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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

air challenge future - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
air challenge future - 20 parameters
2. black nike mercurial galaxy turf black and silver color.
air challenge future - Comparing the results
3. Our tests are standardized, and our results are comparable.
air challenge future - Wear test
4. black nike free womens maroon and gold dress.
air challenge future - No bias
5. black nike huarache 2017 maroon blue gray hair color.