ShoesadidasAdizero Prime X 2 Strung

adidas

adidas Adizero Prime X 2 Strung

adidas Adizero Prime X 2 Strung. 45.7mm stack, 305g. Retailer specs verified on Running Warehouse.

PR Run Verified
Soft trailsLong ultrasDaily training

PR Run scores

Grip3/5
Cushion5/5
Protection3/5
Durability4/5
Versatility3/5

PR Run derived fit scores

89Elite

100-miler readiness

Will this shoe survive a hundred-mile night? 45.7 mm stack, cushion 5/5

100Elite

Descent tolerance

Does it save your toenails on long descents? 36.9 mm forefoot, heel counter 1/5

100Elite

Swelling room

Room to grow when your feet swell? 26.1 mm toebox height

68Great

Grit resistance

Does dust stay outside the shoe? 4 BR breathability

23Weak

Hot-day comfort

How well does it breathe in heat? 4 BR / ?% drying

74Great

Achilles-friendly

Kind to a cranky achilles? 8.8 mm drop, heel counter 1/5

Full specs

Drop

8.8 mm

Heel stack

45.7 mm

Forefoot stack

36.9 mm

Weight

305 g

Plate

No

Waterproof

No

Lab measurements

MeasurementValue
Traction (CoF)0.68
Breathability4 BR
Flexibility37.0 N
Heel counter1/5
Energy return72.5 %
Shock absorption148 SA
Midsole softness41.6 HA
Outsole thickness1.5 mm
Tongue padding1.0 mm
Insole removableYes
Insole thickness2.8 mm
Reflective elementsNo

Lab numbers from RunRepeat. Sources.

Fit intelligence

Toebox width

Narrow toebox (69.0 mm vs 96 mm median)

Toebox height

Slightly tall (26.1 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 adidas Adizero Prime X 2 Strung good for 100-mile races?

Elite. 45.7 mm stack, cushion 5/5. 100-miler readiness score 89/100.

Does the adidas Adizero Prime X 2 Strung fit wide feet?

No. Toebox is 69.0 mm which is narrow. Look elsewhere if you need width.

What is the drop on the adidas Adizero Prime X 2 Strung?

8.8 mm, with a 45.7 mm heel stack and 36.9 mm forefoot.

Is the adidas Adizero Prime X 2 Strung good on wet rock?

Traction coefficient of friction on wet lab surface: 0.68. Elite grip on wet rock.

Manufacturer specs

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Image: adidas product photo

Specs: retailer. Verified Sep 2, 2026.

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

adidas Adizero Prime X 2 Strung Review, Specs, and Fit (2026) | PR Run