Salomon
Salomon X Ultra 5 GTX
Salomon X Ultra 5 GTX. 32.4mm stack, 377g. 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? 32.4 mm stack, cushion 4/5
Descent tolerance
Does it save your toenails on long descents? 20.4 mm forefoot, heel counter 5/5
Swelling room
Room to grow when your feet swell? 29.5 mm toebox height
Grit resistance
Does dust stay outside the shoe? 49 BR breathability
Hot-day comfort
How well does it breathe in heat? 49 BR / 35% drying
Achilles-friendly
Kind to a cranky achilles? 12 mm drop, heel counter 5/5
Full specs
Drop
12 mm
Heel stack
32.4 mm
Forefoot stack
20.4 mm
Weight
377 g
Lug depth
4 mm
Plate
No
Waterproof
No
Lab measurements
| Measurement | Value |
|---|---|
| Traction (CoF) | 0.65 |
| Breathability | 49 BR |
| Drying potential | 35 % |
| Flexibility | 15.3 N |
| Torsional rigidity | 19.00 Nm |
| Heel counter | 5/5 |
| Energy return | 51.5 % |
| Shock absorption | 83 SA |
| Midsole softness | 53.0 HA |
| Softness in cold | 62.7 % |
| Outsole thickness | 3.2 mm |
| Tongue padding | 8.4 mm |
| Insole removable | Yes |
| Insole thickness | 5.8 mm |
| Reflective elements | No |
Fit intelligence
Toebox width
Narrow toebox (70.2 mm vs 96 mm median)
Toebox height
Tall toebox (29.5 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 Salomon X Ultra 5 GTX good for 100-mile races?
Elite. 32.4 mm stack, cushion 4/5. 100-miler readiness score 88/100.
Does the Salomon X Ultra 5 GTX fit wide feet?
No. Toebox is 70.2 mm which is narrow. Look elsewhere if you need width.
What is the drop on the Salomon X Ultra 5 GTX?
12 mm, with a 32.4 mm heel stack and 20.4 mm forefoot.
Is the Salomon X Ultra 5 GTX good on wet rock?
Traction coefficient of friction on wet lab surface: 0.65. Elite grip on wet rock.
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swellingRoom: 100/100 (Elite)
descentTolerance: 100/100 (Elite)
gritIngressRisk: 70/100 (Great)
hotFootScore: 57/100 (Solid)
achillesFriendlyScore: 26/100 (Weak)
hundredMilerReadiness: 88/100 (Elite)