ShoesOnCloudhorizon 2 Waterproof
On
On Cloudhorizon 2 Waterproof
On Cloudhorizon 2 Waterproof. 39.9mm stack, 354g. 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? 39.9 mm stack, cushion 5/5
Descent tolerance
Does it save your toenails on long descents? 29.9 mm forefoot, heel counter 5/5
Swelling room
Room to grow when your feet swell? 27.3 mm toebox height
Grit resistance
Does dust stay outside the shoe? 45 BR breathability
Hot-day comfort
How well does it breathe in heat? 45 BR / 36% drying
Achilles-friendly
Kind to a cranky achilles? 10 mm drop, heel counter 5/5
Full specs
Drop
10 mm
Heel stack
39.9 mm
Forefoot stack
29.9 mm
Weight
354 g
Lug depth
3.4 mm
Plate
No
Waterproof
No
Lab measurements
| Measurement | Value |
|---|---|
| Traction (CoF) | 0.85 |
| Breathability | 45 BR |
| Drying potential | 36 % |
| Flexibility | 26.2 N |
| Torsional rigidity | 24.10 Nm |
| Heel counter | 5/5 |
| Energy return | 49.8 % |
| Shock absorption | 116 SA |
| Midsole softness | 49.7 HA |
| Softness in cold | 59.3 % |
| Outsole thickness | 1.8 mm |
| Tongue padding | 8.0 mm |
| Insole removable | Yes |
| Insole thickness | 5.1 mm |
| Reflective elements | Yes |
Fit intelligence
Toebox width
Narrow toebox (70.5 mm vs 96 mm median)
Toebox height
Slightly tall (27.3 mm vs 25 mm median)
Fit intel pending.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the On Cloudhorizon 2 Waterproof good for 100-mile races?
Elite. 39.9 mm stack, cushion 5/5. 100-miler readiness score 94/100.
Does the On Cloudhorizon 2 Waterproof fit wide feet?
No. Toebox is 70.5 mm which is narrow. Look elsewhere if you need width.
What is the drop on the On Cloudhorizon 2 Waterproof?
10 mm, with a 39.9 mm heel stack and 29.9 mm forefoot.
Is the On Cloudhorizon 2 Waterproof good on wet rock?
Traction coefficient of friction on wet lab surface: 0.85. Elite grip on wet rock.
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swellingRoom: 100/100 (Elite)
descentTolerance: 100/100 (Elite)
gritIngressRisk: 71/100 (Great)
hotFootScore: 54/100 (Solid)
achillesFriendlyScore: 36/100 (Passable)
hundredMilerReadiness: 94/100 (Elite)