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

Shoes NIKE Runallday 2 CD0224 004 Black White Iron Grey - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
Shoes NIKE Runallday 2 CD0224 004 Black White Iron Grey - 20 parameters
2. In our lab, we measure and assess over 20 parameters for each shoe.
Shoes NIKE Runallday 2 CD0224 004 Black White Iron Grey - Comparing the results
3. Our tests are standardized, and our results are comparable.
Shoes NIKE Runallday 2 CD0224 004 Black White Iron Grey - Wear test
4. there was another shoe-themed hat.
Shoes NIKE Runallday 2 CD0224 004 Black White Iron Grey - No bias
5. No bias: we buy all the shoes on our own and accept no sponsorships.