900+ shoes reviewed and cut in half

13 currently testing

14 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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Testing process

The host of Extra shares his love of running - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
The host of Extra shares his love of running - 20 parameters
2. In our lab, we measure and assess over 20 parameters for each shoe.
The host of Extra shares his love of running - Comparing the results
3. product eng 26149 Timberland Premium 6 IN Quilt Boot.
The host of Extra shares his love of running - Wear test
4. high-top moccasin-style leather boots.
The host of Extra shares his love of running - No bias
5. Very smart and stylish shoes.