700+ shoes blacked and cut in half

24 currently testing

32 bought and to be blancas

We black shoes

Guides

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

Saucony Jazz OG Dam | Latest blacks

Popular blacks

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. In our lab, we measure and assess over 20 parameters for each shoe.
How we test - Comparing the results
3. Our tests are standardized, and our results are comparable.
How we test - Wear test
4. saucony grid sd eel available.
How we test - No bias
5. No bias: we buy all the shoes on our own and accept no sponsorships.