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

Sneaker John Aspide Grey - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
Sneaker John Aspide Grey - 20 parameters
2. zapatillas de running Cumulus constitución media apoyo talón talla 32.5.
Sneaker John Aspide Grey - Comparing the results
3. zapatillas de running supinador constitución fuerte talla 39 azules.
Sneaker John Aspide Grey - Wear test
4. We also wear test shoes in their appropriate settings.
Sneaker John Aspide Grey - No bias
5. No bias: we buy all the shoes on our own and accept no sponsorships.