Mizuno
Mizuno Wave SKY 9
Mizuno Wave SKY 9. 44.3mm stack, 295g. 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? 44.3 mm stack, cushion 5/5
Descent tolerance
Does it save your toenails on long descents? 38.1 mm forefoot, heel counter 5/5
Swelling room
Room to grow when your feet swell? 22.8 mm toebox height
Grit resistance
Does dust stay outside the shoe? 4 BR breathability
Hot-day comfort
How well does it breathe in heat? 4 BR / ?% drying
Achilles-friendly
Kind to a cranky achilles? 6.2 mm drop, heel counter 5/5
Full specs
Drop
6.2 mm
Heel stack
44.3 mm
Forefoot stack
38.1 mm
Weight
295 g
Plate
No
Waterproof
No
Lab measurements
Fit intelligence
Toebox width
Narrow toebox (70.4 mm vs 96 mm median)
Toebox height
Slightly shallow (22.8 mm vs 25 mm median)
Runs small. Consider a half size up.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the Mizuno Wave SKY 9 good for 100-mile races?
Elite. 44.3 mm stack, cushion 5/5. 100-miler readiness score 84/100.
Does the Mizuno Wave SKY 9 fit wide feet?
No. Toebox is 70.4 mm which is narrow. Look elsewhere if you need width.
What is the drop on the Mizuno Wave SKY 9?
6.2 mm, with a 44.3 mm heel stack and 38.1 mm forefoot.
Is the Mizuno Wave SKY 9 good on wet rock?
Traction coefficient of friction on wet lab surface: 0.64. Elite grip on wet rock.
Manufacturer specs · Retailer listing
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swellingRoom: 97/100 (Elite)
descentTolerance: 100/100 (Elite)
gritIngressRisk: 95/100 (Elite)
hotFootScore: 23/100 (Weak)
achillesFriendlyScore: 55/100 (Solid)
hundredMilerReadiness: 84/100 (Elite)