Nike
Nike Zoom FLY 6
Nike Zoom FLY 6. 39.7mm stack, 248g. 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? 39.7 mm stack, cushion 5/5
Descent tolerance
Does it save your toenails on long descents? 30.1 mm forefoot, heel counter 4/5
Swelling room
Room to grow when your feet swell? 24.5 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? 8 mm drop, heel counter 4/5
Full specs
Drop
8 mm
Heel stack
39.7 mm
Forefoot stack
30.1 mm
Weight
264 g
Plate
No
Waterproof
No
Lab measurements
Fit intelligence
Toebox width
Narrow toebox (72.6 mm vs 96 mm median)
Toebox height
Category-average height (24.5 mm vs 25 mm median)
True to size.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the Nike Zoom FLY 6 good for 100-mile races?
Great. 39.7 mm stack, cushion 5/5. 100-miler readiness score 79/100.
Does the Nike Zoom FLY 6 fit wide feet?
No. Toebox is 72.6 mm which is narrow. Look elsewhere if you need width.
What is the drop on the Nike Zoom FLY 6?
8 mm, with a 39.7 mm heel stack and 30.1 mm forefoot.
Is the Nike Zoom FLY 6 good on wet rock?
Traction coefficient of friction on wet lab surface: 0.42. Marginal grip on wet rock.
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swellingRoom: 100/100 (Elite)
descentTolerance: 95/100 (Elite)
gritIngressRisk: 89/100 (Elite)
hotFootScore: 22/100 (Weak)
achillesFriendlyScore: 54/100 (Solid)
hundredMilerReadiness: 79/100 (Great)