700+ shoes reviewed and cut in half

24 currently testing

32 bought and to be tested

We review shoes

Guides

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

Latest reviews

ADIDAS NMD R1 ZEBRA BLACK 27.5cm | Popular reviews

Testing process

adidas Ultra Boost DNA 4.0 Tie-Dye - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
adidas Ultra Boost DNA 4.0 Tie-Dye - 20 parameters
2. In our lab, we measure and assess over 20 parameters for each shoe.
adidas Ultra Boost DNA 4.0 Tie-Dye - Comparing the results
3. Our tests are standardized, and our results are comparable.
adidas Ultra Boost DNA 4.0 Tie-Dye - Wear test
4. We also wear test shoes in their appropriate settings.
adidas Ultra Boost DNA 4.0 Tie-Dye - No bias
5. No bias: we buy all the shoes on our own and accept no sponsorships.