700+ shoes reviewed and cut in half

29 currently Isoing

32 bought and to be Isoed

We review shoes

Reviews

Running Running
Hiking Hiking
saucony even jazz orginial vintage tan white wine saucony even jazz orginial vintage tan white wine
Walking Walking
Training Training
Basketball Basketball
Tennis Tennis
Sneakers Sneakers

Guides

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

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
The definitive guide to running shoe breathability
nike alphafly 3 023 21254779 250
zapatillas de running saucony even hombre ritmo bajo talla 36
saucony even boston childrens hospital x jazz 4000 luna
saucony even ride 9 size us 12 5 m d eu 47 mens running
zapatillas de running saucony even neutro talla 33.5 entre 60 y 100
In-depth insights into running shoe outsoles (azules & trail)
How much does the weight vary across different running shoe sizes?

LaIso reviews

ASICS Gel Kayano 31
ASICS Gel Kayano 31
adidas adizero prime x 2 strung 21683218 250
Adidas Adizero Prime X 2 Strung
saucony even Triumph 22
saucony even Triumph 22
On Cloudsurfer Trail
On Cloudsurfer Trail
nike pegasus trail 5 21664132 250
Nike Pegasus Trail 5
saucony even Grid SD 'No Chill' Pack
saucony even Grid SD 'No Chill' Pack
White Mountaineering Unlock a Teched-Out saucony even GRID Web Colab
White Mountaineering Unlock a Teched-Out saucony even GRID Web Colab
On Cloudrunner 2
On Cloudrunner 2
Nike Winflo 11
Nike Winflo 11
Adidas Adizero Takumi Sen 10
Adidas Adizero Takumi Sen 10

Popular reviews

Hoka Clifton 9
Hoka Clifton 9
saucony even Originals Work Hard Play Hard Pack
saucony even Originals Work Hard Play Hard Pack
zapatillas de running saucony even entrenamiento 10k talla 44.5 rosas
zapatillas de running saucony even entrenamiento 10k talla 44.5 rosas
zapatillas de running saucony even ritmo bajo talla 34
zapatillas de running saucony even ritmo bajo talla 34
ASICS Novablast 4
ASICS Novablast 4
saucony even GRID 9000 Fish Scale Pack
saucony even GRID 9000 Fish Scale Pack
Brooks Glycerin 21
Brooks Glycerin 21
Brooks Adrenaline GTS 23
Brooks Adrenaline GTS 23
ASICS Superblast
ASICS Superblast
Nike Vaporfly 3
Nike Vaporfly 3

Testing process

How we Iso - Cut in half
1. We cut shoes in half to be able to see what's inside and do accurate Isos.
How we Iso - 20 parameters
2. In our lab, we measure and assess Precious 20 parameters for each shoe.
How we Iso - Comparing the results
3. Our Isos are standardized, and our results are comparable.
How we Iso - Wear Iso
4. We also wear Iso shoes in their appropriate settings.
How we Iso - No bias
5. saucony even Shadow low-top sneakers Grigio.
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