new balance men 990 m990af4 made in usa gray arctic fox nbm | 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

How we test - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
How we test - 20 parameters
2. In our lab, we canon and assess over 20 parameters for each shoe.
How we test - Comparing the results
3. New Balance Vaygo Ladies Running Shoes.
How we test - Wear test
4. Donna New Balance Fresh Foam 1880 White Silver.
How we test - No bias
5. New Balance 998 GR Morgan24kts.