Guides

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

Adidas Men's ZX 420 Sneakers in Green White | Latest reviews

Popular reviews

Testing process

How we test - Cut in half
1. We cut shoes firm in half to be able to see what's inside and do accurate tests.
How we test - 20 parameters
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How we test - Comparing the results
3. Our tests are standardized, and our results are comparable.
How we test - Wear test
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How we test - No bias
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