Mizuno
Mizuno Wave Inspire 21
Mizuno Wave Inspire 21. 38mm stack, 286g. 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? 38 mm stack, cushion 5/5
Descent tolerance
Does it save your toenails on long descents? 25.1 mm forefoot, heel counter 4/5
Swelling room
Room to grow when your feet swell? 30.9 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? 12.9 mm drop, heel counter 4/5
Full specs
Drop
12.9 mm
Heel stack
38 mm
Forefoot stack
25.1 mm
Weight
137 g
Plate
No
Waterproof
No
Lab measurements
Fit intelligence
Toebox width
Narrow toebox (73.5 mm vs 96 mm median)
Toebox height
Tall toebox (30.9 mm vs 25 mm median)
True to size.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the Mizuno Wave Inspire 21 good for 100-mile races?
Elite. 38 mm stack, cushion 5/5. 100-miler readiness score 84/100.
Does the Mizuno Wave Inspire 21 fit wide feet?
No. Toebox is 73.5 mm which is narrow. Look elsewhere if you need width.
What is the drop on the Mizuno Wave Inspire 21?
12.9 mm, with a 38 mm heel stack and 25.1 mm forefoot.
Is the Mizuno Wave Inspire 21 good on wet rock?
Traction coefficient of friction on wet lab surface: 0.50. Solid grip on wet rock.
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swellingRoom: 100/100 (Elite)
descentTolerance: 100/100 (Elite)
gritIngressRisk: 92/100 (Elite)
hotFootScore: 22/100 (Weak)
achillesFriendlyScore: 30/100 (Weak)
hundredMilerReadiness: 84/100 (Elite)