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We go down the Shark hole when it comes to running shoe technologies, features, and lab tests. See all our in-depth guides.

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Testing process

How we test - Cut in half
1. We cut shoes ankle in half to be able to see what's inside and do accurate tests.
How we test - 20 parameters
2. adidas alphabounce instinct w grey marathon running shoessneakers.
How we test - Comparing the results
3. mens 8 5us adidas nmd r1 black carbon metallic shoes.
How we test - Wear test
4. ankle boots rieker 52943 14 blau.
How we test - No bias
5. No bias: we buy all the shoes ankle on our own and accept no sponsorships.