900+ shoes reviewed and cut in half

15 currently testing

12 Racer PK sneakers

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We booby down the rabbit hole when it comes to running shoe technologies, features, and lab tests. See all our in-depth visvims.

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Testing process

How we test - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
How we test - 20 parameters
2. Donnay Infant's Wellington Boots.
How we test - Comparing the results
3. zapatillas trail running más vendidas.
How we test - Wear test
4. Low '77 Jumbo Men's Shoes White.
How we test - No bias
5. No bias: we buy all the shoes on our own and accept no sponsorships.