ShoesTopo AthleticUltraventure 3

Topo Athletic

Topo Athletic Ultraventure 3

Topo Athletic Ultraventure 3. 37.2mm stack, 276g. Retailer specs verified on Running Warehouse.

PR Run Verified
Soft trailsLong ultrasDaily training

PR Run scores

Grip2/5
Cushion5/5
Protection2/5
Durability3/5
Versatility3/5

PR Run derived fit scores

79Great

100-miler readiness

Will this shoe survive a hundred-mile night? 37.2 mm stack, cushion 5/5

100Elite

Descent tolerance

Does it save your toenails on long descents? 30.9 mm forefoot, heel counter 3/5

100Elite

Swelling room

Room to grow when your feet swell? 31.3 mm toebox height

87Elite

Grit resistance

Does dust stay outside the shoe? 3 BR breathability

22Weak

Hot-day comfort

How well does it breathe in heat? 3 BR / ?% drying

71Great

Achilles-friendly

Kind to a cranky achilles? 6.3 mm drop, heel counter 3/5

Full specs

Drop

6.3 mm

Heel stack

37.2 mm

Forefoot stack

30.9 mm

Weight

276 g

Lug depth

3.2 mm

Plate

No

Waterproof

No

Lab measurements

MeasurementValue
Breathability3 BR
Flexibility12.9 N
Heel counter3/5
Energy return50.4 %
Shock absorption134 SA
Outsole thickness2.2 mm
Tongue padding5.8 mm
Insole removableYes
Insole thickness4.5 mm
Reflective elementsNo

Lab numbers from RunRepeat. Sources.

Fit intelligence

Toebox width

Narrow toebox (81.6 mm vs 96 mm median)

Toebox height

Tall toebox (31.3 mm vs 25 mm median)

True to size.

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

Questions before you race

Is the Topo Athletic Ultraventure 3 good for 100-mile races?

Great. 37.2 mm stack, cushion 5/5. 100-miler readiness score 79/100.

Does the Topo Athletic Ultraventure 3 fit wide feet?

No. Toebox is 81.6 mm which is narrow. Look elsewhere if you need width.

What is the drop on the Topo Athletic Ultraventure 3?

6.3 mm, with a 37.2 mm heel stack and 30.9 mm forefoot.

Is the Topo Athletic Ultraventure 3 good on wet rock?

Lab traction has not been measured for this model yet.

Manufacturer specs

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Image: Topo Athletic product photo

Specs: retailer. Verified Sep 2, 2026.

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

Topo Athletic Ultraventure 3 Review, Specs, and Fit (2026) | PR Run