ShoesadidasTerrex Speed Ultra

adidas

adidas Terrex Speed Ultra

adidas Terrex Speed Ultra. 32.8mm stack, 258g. Retailer specs verified on Running Warehouse.

PR Run Verified
Soft trailsRace day

PR Run scores

Grip2/5
Cushion4/5
Protection2/5
Durability3/5
Versatility3/5

PR Run derived fit scores

63Solid

100-miler readiness

Will this shoe survive a hundred-mile night? 38 mm stack, cushion 4/5

66Great

Descent tolerance

Does it save your toenails on long descents? 30 mm forefoot stack

80Elite

Swelling room

Room to grow when your feet swell? 38 mm heel stack

45Passable

Grit resistance

Does dust stay outside the shoe? moderate BR breathability

36Passable

Hot-day comfort

How well does it breathe in heat? Standard mesh

77Great

Achilles-friendly

Kind to a cranky achilles? 8.2 mm drop, heel counter 1/5

Full specs

Drop

8.2 mm

Heel stack

38 mm

Forefoot stack

30 mm

Weight

258 g

Lug depth

2.6 mm

Plate

No

Waterproof

No

Lab measurements

MeasurementValue
Heel counter1/5
Outsole thickness4.2 mm
Tongue padding3.7 mm
Insole removableYes
Insole thickness2.7 mm

Lab numbers from RunRepeat. Sources.

Fit intelligence

True to size.

Fit numbers from the lab. Swell guidance: foot care.

Questions before you race

Is the adidas Terrex Speed Ultra good for 100-mile races?

Solid. 38 mm stack, cushion 4/5. 100-miler readiness score 63/100.

Does the adidas Terrex Speed Ultra fit wide feet?

Toebox width has not been measured in the lab yet.

What is the drop on the adidas Terrex Speed Ultra?

8.2 mm, with a 38 mm heel stack and 30 mm forefoot.

Is the adidas Terrex Speed Ultra good on wet rock?

Lab traction has not been measured for this model yet.

Manufacturer specs · Retailer listing

New lab data on soft trails shoes, once a month.

You will get one email per month with new lab data on soft trails shoes. No hype. Unsubscribe in one click.

Image: Running Warehouse product photo

Specs: retailer. Verified Sep 4, 2026.

Report inaccurate data: hi@pr.run. Data sources.

adidas Terrex Speed Ultra Review, Specs, and Fit (2026) | PR Run