ShoesLa SportivaSpire GTX
La Sportiva
La Sportiva Spire GTX
La Sportiva Spire GTX. 39.1mm stack, 420g. 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? 39.1 mm stack, cushion 5/5
Descent tolerance
Does it save your toenails on long descents? 23.1 mm forefoot, heel counter 5/5
Swelling room
Room to grow when your feet swell? 26.3 mm toebox height
Grit resistance
Does dust stay outside the shoe? 1 BR breathability
Hot-day comfort
How well does it breathe in heat? 1 BR / ?% drying
Achilles-friendly
Kind to a cranky achilles? 16 mm drop, heel counter 5/5
Full specs
Drop
16 mm
Heel stack
39.1 mm
Forefoot stack
23.1 mm
Weight
420 g
Lug depth
4.3 mm
Plate
No
Waterproof
No
Lab measurements
Fit intelligence
Toebox width
Narrow toebox (72.7 mm vs 96 mm median)
Toebox height
Slightly tall (26.3 mm vs 25 mm median)
True to size.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the La Sportiva Spire GTX good for 100-mile races?
Elite. 39.1 mm stack, cushion 5/5. 100-miler readiness score 94/100.
Does the La Sportiva Spire GTX fit wide feet?
No. Toebox is 72.7 mm which is narrow. Look elsewhere if you need width.
What is the drop on the La Sportiva Spire GTX?
16 mm, with a 39.1 mm heel stack and 23.1 mm forefoot.
Is the La Sportiva Spire GTX good on wet rock?
Lab traction has not been measured for this model yet.
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swellingRoom: 100/100 (Elite)
descentTolerance: 91/100 (Elite)
gritIngressRisk: 100/100 (Elite)
hotFootScore: 21/100 (Weak)
achillesFriendlyScore: 6/100 (Weak)
hundredMilerReadiness: 94/100 (Elite)