ShoesSauconyEndorphin Speed 2

Saucony

Saucony Endorphin Speed 2

Saucony Endorphin Speed 2. 35.3mm stack, 229g. Retailer specs verified on Running Warehouse.

PR Run Verified
Soft trailsRace day

PR Run scores

Grip3/5
Cushion5/5
Protection2/5
Durability3/5
Versatility3/5

PR Run derived fit scores

69Great

100-miler readiness

Will this shoe survive a hundred-mile night? 35.3 mm stack, cushion 5/5

54Solid

Descent tolerance

Does it save your toenails on long descents? 26.1 mm forefoot stack

72Great

Swelling room

Room to grow when your feet swell? 35.3 mm heel stack

90Elite

Grit resistance

Does dust stay outside the shoe? 3 BR breathability

22Weak

Hot-day comfort

How well does it breathe in heat? 3 BR / ?% drying

56Solid

Achilles-friendly

Kind to a cranky achilles? 9.2 mm drop, heel counter 3/5

Full specs

Drop

9.2 mm

Heel stack

35.3 mm

Forefoot stack

26.1 mm

Weight

229 g

Plate

No

Waterproof

No

Lab measurements

MeasurementValue
Breathability3 BR
Heel counter3/5
Outsole thickness2.9 mm
Tongue padding6.4 mm
Insole removableYes
Insole thickness4.1 mm

Lab numbers from RunRepeat. Sources.

Fit intelligence

Runs small. Consider a half size up.

Fit numbers from the lab. Swell guidance: foot care.

Questions before you race

Is the Saucony Endorphin Speed 2 good for 100-mile races?

Great. 35.3 mm stack, cushion 5/5. 100-miler readiness score 69/100.

Does the Saucony Endorphin Speed 2 fit wide feet?

Toebox width has not been measured in the lab yet.

What is the drop on the Saucony Endorphin Speed 2?

9.2 mm, with a 35.3 mm heel stack and 26.1 mm forefoot.

Is the Saucony Endorphin Speed 2 good on wet rock?

Lab traction has not been measured for this model yet.

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Image: Saucony product photo

Specs: retailer. Verified Sep 2, 2026.

Report inaccurate data: hi@pr.run. Data sources.

Saucony Endorphin Speed 2 Review, Specs, and Fit (2026) | PR Run