Hoka
Hoka Rocket X 3
Hoka Rocket X 3. 39.6mm stack, 220g. 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? 39.6 mm stack, cushion 5/5
Descent tolerance
Does it save your toenails on long descents? 29.6 mm forefoot, heel counter 2/5
Swelling room
Room to grow when your feet swell? 26.9 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? 10 mm drop, heel counter 2/5
Full specs
Drop
10 mm
Heel stack
39.6 mm
Forefoot stack
29.6 mm
Weight
220 g
Plate
No
Waterproof
No
Lab measurements
| Measurement | Value |
|---|---|
| Traction (CoF) | 0.57 |
| Breathability | 5 BR |
| Flexibility | 21.3 N |
| Torsional rigidity | 15.60 Nm |
| Heel counter | 2/5 |
| Energy return | 73.9 % |
| Shock absorption | 155 SA |
| Midsole softness | 34.3 HA |
| Outsole thickness | 2.4 mm |
| Tongue padding | 3.1 mm |
| Insole removable | Yes |
| Insole thickness | 3.4 mm |
| Reflective elements | No |
Fit intelligence
Toebox width
Narrow toebox (70.0 mm vs 96 mm median)
Toebox height
Slightly tall (26.9 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 Hoka Rocket X 3 good for 100-mile races?
Great. 39.6 mm stack, cushion 5/5. 100-miler readiness score 69/100.
Does the Hoka Rocket X 3 fit wide feet?
No. Toebox is 70.0 mm which is narrow. Look elsewhere if you need width.
What is the drop on the Hoka Rocket X 3?
10 mm, with a 39.6 mm heel stack and 29.6 mm forefoot.
Is the Hoka Rocket X 3 good on wet rock?
Traction coefficient of friction on wet lab surface: 0.57. Elite grip on wet rock.
Manufacturer specs · Retailer listing
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swellingRoom: 100/100 (Elite)
descentTolerance: 96/100 (Elite)
gritIngressRisk: 75/100 (Great)
hotFootScore: 24/100 (Weak)
achillesFriendlyScore: 60/100 (Solid)
hundredMilerReadiness: 69/100 (Great)