On
On Cloudrunner 3
On Cloudrunner 3. 36.8mm stack, 298g. Retailer specs verified on Running Warehouse.
PR Run scores
PR Run derived fit scores
100-miler readiness
Will this shoe survive a hundred-mile night? 36.8 mm stack, cushion 5/5
Descent tolerance
Does it save your toenails on long descents? 28.7 mm forefoot, heel counter 4/5
Swelling room
Room to grow when your feet swell? 25.2 mm toebox height
Grit resistance
Does dust stay outside the shoe? 52 BR breathability
Hot-day comfort
How well does it breathe in heat? 52 BR / 47% drying
Achilles-friendly
Kind to a cranky achilles? 8.1 mm drop, heel counter 4/5
Full specs
Drop
8.1 mm
Heel stack
36.8 mm
Forefoot stack
28.7 mm
Weight
298 g
Plate
No
Waterproof
No
Lab measurements
| Measurement | Value |
|---|---|
| Traction (CoF) | 0.55 |
| Breathability | 52 BR |
| Drying potential | 47 % |
| Flexibility | 19.3 N |
| Torsional rigidity | 19.00 Nm |
| Heel counter | 4/5 |
| Energy return | 53.2 % |
| Shock absorption | 130 SA |
| Midsole softness | 43.6 HA |
| Outsole thickness | 3.4 mm |
| Tongue padding | 7.2 mm |
| Insole removable | Yes |
| Insole thickness | 4.4 mm |
| Reflective elements | Yes |
Fit intelligence
Toebox width
Narrow toebox (71.0 mm vs 96 mm median)
Toebox height
Category-average height (25.2 mm vs 25 mm median)
True to size.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the On Cloudrunner 3 good for 100-mile races?
Elite. 36.8 mm stack, cushion 5/5. 100-miler readiness score 84/100.
Does the On Cloudrunner 3 fit wide feet?
No. Toebox is 71.0 mm which is narrow. Look elsewhere if you need width.
What is the drop on the On Cloudrunner 3?
8.1 mm, with a 36.8 mm heel stack and 28.7 mm forefoot.
Is the On Cloudrunner 3 good on wet rock?
Traction coefficient of friction on wet lab surface: 0.55. Elite grip on wet rock.
Manufacturer specs · Retailer listing
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swellingRoom: 100/100 (Elite)
descentTolerance: 95/100 (Elite)
gritIngressRisk: 64/100 (Solid)
hotFootScore: 65/100 (Great)
achillesFriendlyScore: 54/100 (Solid)
hundredMilerReadiness: 84/100 (Elite)