Brooks
Brooks Cascadia 20 GTX
Brooks Cascadia 20 GTX. 37.9mm stack, 298g. 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? 37.9 mm stack, cushion 5/5
Descent tolerance
Does it save your toenails on long descents? 29.1 mm forefoot, heel counter 5/5
Swelling room
Room to grow when your feet swell? 26.4 mm toebox height
Grit resistance
Does dust stay outside the shoe? moderate BR breathability
Hot-day comfort
How well does it breathe in heat? Standard mesh
Achilles-friendly
Kind to a cranky achilles? 8.8 mm drop, heel counter 5/5
Full specs
Drop
8.8 mm
Heel stack
37.9 mm
Forefoot stack
29.1 mm
Weight
323 g
Lug depth
3.4 mm
Plate
No
Waterproof
No
Lab measurements
Fit intelligence
Toebox width
Narrow toebox (70.6 mm vs 96 mm median)
Toebox height
Slightly tall (26.4 mm vs 25 mm median)
True to size.
Fit numbers from the lab. Swell guidance: foot care.
Questions before you race
Is the Brooks Cascadia 20 GTX good for 100-mile races?
Elite. 37.9 mm stack, cushion 5/5. 100-miler readiness score 84/100.
Does the Brooks Cascadia 20 GTX fit wide feet?
No. Toebox is 70.6 mm which is narrow. Look elsewhere if you need width.
What is the drop on the Brooks Cascadia 20 GTX?
8.8 mm, with a 37.9 mm heel stack and 29.1 mm forefoot.
Is the Brooks Cascadia 20 GTX good on wet rock?
Traction coefficient of friction on wet lab surface: 0.79. Elite grip on wet rock.
Manufacturer specs · Retailer listing
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swellingRoom: 100/100 (Elite)
descentTolerance: 100/100 (Elite)
gritIngressRisk: 70/100 (Great)
hotFootScore: 36/100 (Passable)
achillesFriendlyScore: 42/100 (Passable)
hundredMilerReadiness: 84/100 (Elite)