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Adidas Terrex Speed Ultra

In production · trail · Trail / Race day / Tempo · $180

Featherweight trail racer built for ultras and fast mountain days.

Built for trail, race day, tempo, at a target pace of 7:30–10:30 /mi on trail.

The spec sheet

Weight
258 g / 9.1 oz
Heel stack
26 mm
Drop
8 mm
Midsole foam
Boost
Plate
—
Cushioning
3 / 5
Energy return
4 / 5
Responsiveness
3 / 5
Rocker
3 / 5
Flexibility
2 / 5
Stability
3 / 5 (5 = most guidance)
Toe-box
Narrow
Sizing
True to size
Durability
~250 mi
Price
$180

How it rides

The foam

The midsole is Boost, tuned balanced (3/5 on our cushioning scale). Energy return is above average: the midsole rebounds well without feeling unstable. 26 mm of heel stack keeps you low and connected, with more ground feel than most current trainers. Combined, the ride reads as lively at 3/5 responsiveness.

The plate

There is no plate here. The midsole does all the work, so the shoe flexes naturally and stays versatile across paces — easier on the feet day to day, but without the snap of a plated shoe when you want to roll.

The geometry

A 8 mm drop is the mainstream middle — familiar to almost anyone coming from a standard trainer. The rocker is moderate — enough curve to smooth the roll-through without dictating your footstrike. The forefoot is stiff, so it rolls rather than bends — a lever, not a slipper. Support is light — neutral, with a mildly steady platform.

Fit, sizing & life

The toe-box is narrow and performance-oriented; wide-footed runners should try before buying. It fits true to size. Expect roughly 250 miles from the outsole, about $0.72 per mile at $180.

For the foams and plates Adidas uses across its line, read the Adidas brand guide.

How it compares

Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.

Weight

258 g / 9.1 oz

17 g lighter than the catalog median of 275 g

Heel stack

26 mm

10 mm lower than the catalog median of 36 mm

Drop

8 mm

2 mm higher than the catalog median of 6 mm

Price

$180

20 pricier than the catalog median of 160

Responsiveness

3 / 5

Catalog median 3 / 5

Cushioning

3 / 5

Catalog median 4 / 5

Energy return

4 / 5

Catalog median 3 / 5

Durability

~250 mi

Catalog median ~400 mi

Within the Adidas line it is lighter than the brand's median (278 g / 9.8 oz) and sits lower than its median stack (35 mm).

Closest alternatives

Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.

Adidas Terrex Agravic Speed

255 g / 9.0 oz · 31 mm · 6 mm drop · — · $160

Light, quick trail racer with Continental grip.

Merrell Nova 4

261 g / 9.2 oz · 29 mm · 8 mm drop · — · $130

Nimble moderate-terrain trail trainer on FloatPro foam.

Brooks Divide 6

272 g / 9.6 oz · 24 mm · 8 mm drop · — · $110

Budget road-to-trail crossover for smoother paths and park loops.

Hoka Torrent 4

255 g / 9.0 oz · 29 mm · 5 mm drop · — · $130

Light, flexible and ground-feel oriented for fast trail miles.

Hoka Zinal 2

227 g / 8.0 oz · 30 mm · 5 mm drop · — · $160

Featherweight trail racer for short, fast mountain efforts.

Lineage & siblings