adidas
adidas Ultrabounce
adidas Ultrabounce. 30.3mm stack, 326g. 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? 30.3 mm stack, cushion 4/5
Descent tolerance
Does it save your toenails on long descents? 19 mm forefoot, heel counter 2/5
Swelling room
Room to grow when your feet swell? 27.1 mm toebox height
Grit resistance
Does dust stay outside the shoe? 5 BR breathability
Hot-day comfort
How well does it breathe in heat? 5 BR / ?% drying
Achilles-friendly
Kind to a cranky achilles? 11.3 mm drop, heel counter 2/5
Full specs
Drop
11.3 mm
Heel stack
30.3 mm
Forefoot stack
19 mm
Weight
326 g
Plate
No
Waterproof
No
Lab measurements
Fit intelligence
Toebox width
Narrow toebox (75.3 mm vs 96 mm median)
Toebox height
Slightly tall (27.1 mm vs 25 mm median)
True to size.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the adidas Ultrabounce good for 100-mile races?
Elite. 30.3 mm stack, cushion 4/5. 100-miler readiness score 84/100.
Does the adidas Ultrabounce fit wide feet?
No. Toebox is 75.3 mm which is narrow. Look elsewhere if you need width.
What is the drop on the adidas Ultrabounce?
11.3 mm, with a 30.3 mm heel stack and 19 mm forefoot.
Is the adidas Ultrabounce good on wet rock?
Traction coefficient of friction on wet lab surface: 0.18. Marginal grip on wet rock.
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swellingRoom: 100/100 (Elite)
descentTolerance: 66/100 (Great)
gritIngressRisk: 97/100 (Elite)
hotFootScore: 24/100 (Weak)
achillesFriendlyScore: 54/100 (Solid)
hundredMilerReadiness: 84/100 (Elite)