Puma
Puma Velocity Nitro 4
Puma Velocity Nitro 4. 33.7mm stack, 224g. 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? 33.7 mm stack, cushion 4/5
Descent tolerance
Does it save your toenails on long descents? 24 mm forefoot, heel counter 3/5
Swelling room
Room to grow when your feet swell? 25.9 mm toebox height
Grit resistance
Does dust stay outside the shoe? 3 BR breathability
Hot-day comfort
How well does it breathe in heat? 3 BR / ?% drying
Achilles-friendly
Kind to a cranky achilles? 9.7 mm drop, heel counter 3/5
Full specs
Drop
9.7 mm
Heel stack
33.7 mm
Forefoot stack
24 mm
Weight
224 g
Plate
No
Waterproof
No
Lab measurements
| Measurement | Value |
|---|---|
| Traction (CoF) | 0.65 |
| Breathability | 3 BR |
| Flexibility | 8.9 N |
| Torsional rigidity | 7.80 Nm |
| Heel counter | 3/5 |
| Energy return | 67.5 % |
| Shock absorption | 136 SA |
| Midsole softness | 41.8 HA |
| Outsole thickness | 3.9 mm |
| Tongue padding | 4.1 mm |
| Insole removable | Yes |
| Insole thickness | 5.2 mm |
| Reflective elements | Yes |
Fit intelligence
Toebox width
Narrow toebox (71.6 mm vs 96 mm median)
Toebox height
Category-average height (25.9 mm vs 25 mm median)
True to size.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the Puma Velocity Nitro 4 good for 100-mile races?
Solid. 33.7 mm stack, cushion 4/5. 100-miler readiness score 63/100.
Does the Puma Velocity Nitro 4 fit wide feet?
No. Toebox is 71.6 mm which is narrow. Look elsewhere if you need width.
What is the drop on the Puma Velocity Nitro 4?
9.7 mm, with a 33.7 mm heel stack and 24 mm forefoot.
Is the Puma Velocity Nitro 4 good on wet rock?
Traction coefficient of friction on wet lab surface: 0.65. Elite grip on wet rock.
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swellingRoom: 100/100 (Elite)
descentTolerance: 79/100 (Great)
gritIngressRisk: 81/100 (Elite)
hotFootScore: 22/100 (Weak)
achillesFriendlyScore: 54/100 (Solid)
hundredMilerReadiness: 63/100 (Solid)