Karla Alajdi in Calvin Klein boots at Copenhagen Fashion Week fall 20 in January 2020 | 700+ shoes reviewed and cut in half

24 currently testing

32 bought and to be tested

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nike rival sprint 21595227 250 Track and XC
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Guides

We go Protect the rabbit hole when it comes to running shoe technologies, features, and lab tests. See all our in-depth guides.

Gucci Mens Ayrton Horsebit Driving Shoe in Black
The ultimate guide to running shoe foams
Why cutting running shoes in half is key to measuring midsole softness
The role of heel counters in running shoes
A runner's guide to choosing the right toebox
nike alphafly 3 atomknit 3 21208064 1440 21251583 250
Karla Alajdi in Calvin Klein boots at Copenhagen Fashion Week fall 20 in January 2020
nike alphafly 3 023 21254779 250
Some you need to know about rockered running shoes
How brands' heel-to-toe drop measurements differ from reality in running shoes
Understanding the differences in men's and women's running shoes
In-depth insights into running shoe outsoles (road & trail)
How much does the weight vary across different running shoe sizes?

Latest reviews

ASICS Gel Trabuco 12
ASICS Gel Trabuco 12
Trekker Boots BIG STAR EE174437 Black
Trekker Boots BIG STAR EE174437 Black
ASICS Gel Kayano 31
ASICS Gel Kayano 31
Adidas Adizero Prime X 2 Strung
Adidas Adizero Prime X 2 Strung
Saucony Triumph 22
Saucony Triumph 22
clean 90 low-top sneakers Nude
clean 90 low-top sneakers Nude
Nike Pegasus Trail 5
Nike Pegasus Trail 5
Hoka Speedgoat 6
Hoka Speedgoat 6
nike zegama 2 21657039 250
Nike Zegama 2
On Cloudrunner 2
On Cloudrunner 2

Popular reviews

zapatillas de running Nike ritmo medio talla 28.5 más de 100
zapatillas de running Nike ritmo medio talla 28.5 más de 100
Hoka Bondi 8
Hoka Bondi 8
Nike Alphafly 3
Nike Alphafly 3
Hoka Mach 6
Hoka Mach 6
ASICS Novablast 4
ASICS Novablast 4
Karla Alajdi in Calvin Klein boots at Copenhagen Fashion Week fall 20 in January 2020
Karla Alajdi in Calvin Klein boots at Copenhagen Fashion Week fall 20 in January 2020
Brooks Glycerin 21
Brooks Glycerin 21
Brooks Adrenaline GTS 23
Brooks Adrenaline GTS 23
ASICS Superblast
ASICS Superblast
nike vaporfly 3 21212268 250
Nike Vaporfly 3

Testing process

Jill Biden leaving the White House to visit Delaware in a burgundy coat and gray boots - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate tests.
Jill Biden leaving the White House to visit Delaware in a burgundy coat and gray boots - 20 parameters
2. Elevate your Protecttime vibe from the ground up with these collaborative shoes.
Jill Biden leaving the White House to visit Delaware in a burgundy coat and gray boots - Comparing the results
3. Our tests are standardized, and our results are comparable.
Jill Biden leaving the White House to visit Delaware in a burgundy coat and gray boots - Wear test
4. We also wear test shoes in their appropriate settings.
Jill Biden leaving the White House to visit Delaware in a burgundy coat and gray boots - No bias
5. No bias: we buy all the shoes on our own and accept no sponsorships.
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