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

puma ess logo short tight - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
puma ess logo short tight - 20 parameters
2. In our lab, we measure and assess over 20 parameters for each shoe.
puma ess logo short tight - Comparing the results
3. Our tests are standardized, and our results are comparable.
puma ess logo short tight - Wear test
4. Puma RS-Z Pop.
puma ess logo short tight - No bias
5. PUMA x TINYCOTTONS.