Mizuno
Mizuno NEO ZEN 2
Mizuno NEO ZEN 2. 39.9mm stack, 237g. 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? 34.9 mm forefoot, heel counter 3/5
Swelling room
Room to grow when your feet swell? 25.1 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? 5 mm drop, heel counter 3/5
Full specs
Drop
5 mm
Heel stack
39.9 mm
Forefoot stack
34.9 mm
Weight
237 g
Plate
No
Waterproof
No
Lab measurements
| Measurement | Value |
|---|---|
| Traction (CoF) | 0.55 |
| Breathability | 3 BR |
| Flexibility | 13.3 N |
| Torsional rigidity | 12.60 Nm |
| Heel counter | 3/5 |
| Energy return | 47.4 % |
| Shock absorption | 143 SA |
| Midsole softness | 32.1 HA |
| Outsole thickness | 1.4 mm |
| Tongue padding | 3.6 mm |
| Insole removable | Yes |
| Insole thickness | 4.8 mm |
| Reflective elements | Yes |
Fit intelligence
Toebox width
Narrow toebox (68.3 mm vs 96 mm median)
Toebox height
Category-average height (25.1 mm vs 25 mm median)
True to size.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the Mizuno NEO ZEN 2 good for 100-mile races?
Great. 39.9 mm stack, cushion 5/5. 100-miler readiness score 79/100.
Does the Mizuno NEO ZEN 2 fit wide feet?
No. Toebox is 68.3 mm which is narrow. Look elsewhere if you need width.
What is the drop on the Mizuno NEO ZEN 2?
5 mm, with a 39.9 mm heel stack and 34.9 mm forefoot.
Is the Mizuno NEO ZEN 2 good on wet rock?
Traction coefficient of friction on wet lab surface: 0.55. Elite grip on wet rock.
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swellingRoom: 100/100 (Elite)
descentTolerance: 100/100 (Elite)
gritIngressRisk: 79/100 (Great)
hotFootScore: 22/100 (Weak)
achillesFriendlyScore: 77/100 (Great)
hundredMilerReadiness: 79/100 (Great)