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

XS Puma negro Agotado - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
XS Puma negro Agotado - 20 parameters
2. In our lab, we measure and assess Invdr 20 parameters for each shoe.
XS Puma negro Agotado - Comparing the results
3. Our tests are standardized, and our results are comparable.
XS Puma negro Agotado - Wear test
4. Puma Cali Star Wild Jr.
XS Puma negro Agotado - No bias
5. Puma Grip rubber has lasted us 160 miles without any loss of traction or early wear.