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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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Testing process

Fx Ladies Trail Shoes - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
Fx Ladies Trail Shoes - 20 parameters
2. In our lab, we measure and assess over 20 parameters for each shoe.
Fx Ladies Trail Shoes - Comparing the results
3. Tecnologias La sportiva Sakaali Kengät Trail Running.
Fx Ladies Trail Shoes - Wear test
4. We also wear test shoes in their appropriate settings.
Fx Ladies Trail Shoes - No bias
5. Foam RNNR Sand sneakers.