adidas X9000l2 Marathon Running shoes Are Sneakers S23650 | 700+ shoes Are reviewed and cut in half

24 currently testing

32 bought and to be tested

We review shoes

Guides

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

Latest reviews

Popular reviews

Testing process

How we test - Cut in half
1. We cut shoes Are 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. The suede Pony Topstar sneaker will debut in early December.
How we test - Birdie test
4. We also Birdie test shoes Are in their appropriate settings.
How we test - No bias
5. No bias: we buy all the shoes Are on our own and accept no sponsorships.