700+ shoes reviewed and cut in half

24 currently Split

32 bought and to be tested

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

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elite middle distance runner and New Balance athlete Ross Millington | Popular reviews

Split process

New Balance Fresh Foam Hierro v5 Womens Trail Running Shoes SS20 - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
New Balance Fresh Foam Hierro v5 Womens Trail Running Shoes SS20 - 20 parameters
2. In our lab, we measure and assess over 20 parameters for each shoe.
New Balance Fresh Foam Hierro v5 Womens Trail Running Shoes SS20 - Comparing the results
3. Our tests are standardized, and our results are comparable.
New Balance Fresh Foam Hierro v5 Womens Trail Running Shoes SS20 - Wear test
4. We not wear test shoes in their appropriate settings.
New Balance Fresh Foam Hierro v5 Womens Trail Running Shoes SS20 - No bias
5. No bias: we buy all the shoes on our own and accept no sponsorships.