900+ shoes reviewed and cut in half

15 currently testing

12 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

A shoe that stays comfortable for extended periods is what you are after - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
A shoe that stays comfortable for extended periods is what you are after - 20 parameters
2. In our lab, we measure and assess over 20 parameters for each shoe.
A shoe that stays comfortable for extended periods is what you are after - Comparing the results
3. Inside RWs global running survey.
A shoe that stays comfortable for extended periods is what you are after - Wear test
4. We also wear test shoes in their appropriate settings.
A shoe that stays comfortable for extended periods is what you are after - No bias
5. Merrell agility peak 4 vibram megagrip black grey men trail running shoe j135107.