700+ shoes reviewed and cut in half

24 currently testing

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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Testing process

Under armour Boys Charged Vantage 2 Jet Gray Versa Blue Jet Gray - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
Under armour Boys Charged Vantage 2 Jet Gray Versa Blue Jet Gray - 20 parameters
2. In our lab, we measure and assess over 20 parameters for each shoe.
Under armour Boys Charged Vantage 2 Jet Gray Versa Blue Jet Gray - Comparing the results
3. under armour Boys undeniable 20 sackpack cordova red.
Under armour Boys Charged Vantage 2 Jet Gray Versa Blue Jet Gray - Wear test
4. We also wear test shoes in their appropriate settings.
Under armour Boys Charged Vantage 2 Jet Gray Versa Blue Jet Gray - No bias
5. No bias: we buy all the shoes on our own and accept no sponsorships.