ShoeGeometry

On Cloudultra Pro

TrailTrailPlate unknown2025Men'sCurrent

At a glance

Heel-to-toe drop
6 mmStated
Stack, heel / forefoot
38.5 / 32.5 mmStated
Weight
264 gStatedUS M9
Plate
Plate unknown
Toe rocker
40 % of lengthest.photos 37–40 %
Heel bevel
15.3 % of lengthest.photos 10–17 %
Stiffness / firmness
34 / 59 of 100Derived
Primary foam
Dual-layer Helion HF (PEBA-based)

How it compares

  • On Cloudultra Pro's heel-to-toe drop is 6 mm, about the catalogue median of 6 mm (25% of the 179 other current shoes are lower).
  • On Cloudultra Pro's heel stack is 38.5 mm, about the catalogue median of 38 mm (53% of the 176 other current shoes are thinner).
  • On Cloudultra Pro's forefoot stack is 32.5 mm, thicker than the catalogue median of 31.5 mm (58% of the 171 other current shoes are thinner).
  • On Cloudultra Pro's weight is 264 g, about the catalogue median of 269 g (42% of the 167 other current shoes are lighter).
  • 4 shoes with similar geometry from other lines.

Differences smaller than the precision of the sources (about 1 mm of stack, 8 g, or the spread between photos for photo estimates) are reported as about the same.

Specifications

Heel-to-toe drop
Manufacturer stated
6mm
MediumSpec listingbrand figure, reported by Running Warehousesource
Heel stack
Manufacturer stated
38.5mm
LowSpec listingbrand figure, reported by Believe in the Runsource
Forefoot stack
Manufacturer stated
32.5mm
LowSpec listingbrand figure, reported by Believe in the Runsource
Weight
Manufacturer stated
264g
MediumSpec listingbrand figure, reported by Believe in the RunUS M9source
Plate
Plate unknown
Primary foam
Dual-layer Helion HF (PEBA-based)
List price
$260

Geometry

Catalogue average: heel 38 mm, forefoot 32 mm, toe rocker 35 %On Cloudultra Pro: heel 39 mm, forefoot 33 mm (drop 6 mm); toe rocker 40 % of length, radius 63 % of length; heel bevel 15 % of length, 20 mm high at the back, reaching in front of the heel bone (the sole still curves up under it: a heel rocker).39 mm33 mmUnder the centre of the heel bone: 12 % of length from the heel, where heel stack is measuredheel boneHeel contact: the sole is within 4.5 mm of the ground from 15 % of length (foam compresses more under load), reaching in front of the heel bone (the sole still curves up under it: a heel rocker)heel bevel 15 %Toe rocker: the front 40 % of the length curves up (the curve leaves the ground 60 % of length from the heel)toe rocker 40 %toeheel
Front: toe rocker shorter longerRear: heel stack lower higher not measured
Dashed: average of the catalogue
Illustrative profile, not a photograph or scan: drawn to scale for a 300 mm shoe from published stack heights and photo estimates of the unloaded shoe (under body weight the foam compresses and the curves flatten). The grey upper is a generic outline, not this shoe’s. On Cloudultra Pro: heel 39 mm, forefoot 33 mm (drop 6 mm); toe rocker 40 % of length, radius 63 % of length; heel bevel 15 % of length, 20 mm high at the back, reaching in front of the heel bone (the sole still curves up under it: a heel rocker). Heel bone: 12 % of length from the heel, where heel stack is measured. Heel bevel and toe rocker are marked where each curve meets the ground; for the heel that is where the sole comes within 4.5 mm of the ground, which foam compression closes under body weight.

Percent values are relative to shoe length so they compare across images and sizes; widths in millimetres are lab measurements from the cited source, while toe tip and heel heights in millimetres are photo estimates converted for a men’s US 9 (assumed 300 mm long), so approximate. See how rocker geometry is defined.

Toe rocker
AI estimated
40%

4 photos range 37–40 %; shown is one of the two that agree most closely.

LowSide photosource
Rocker radius
AI estimated
63%

4 photos range 54–63 %; shown is one of the two that agree most closely.

LowSide photosource
Rocker rise angle
AI estimated
25deg

4 photos range 21–26 deg; shown is one of the two that agree most closely.

LowSide photosource
Toe tip over ground
AI estimated
36mm

4 photos range 35–38 mm; shown is the average of the two that agree most closely.

LowSide photosource
Rocker angle at toe
AI estimated
64deg

4 photos range 49–64 deg; shown is one of the two that agree most closely.

LowSide photosource
Visible rocker lift onset
AI estimated
72.2%

4 photos range 71.8–77.2 %; shown is one of the two that agree most closely.

LowSide photosource
Toe spring (relative)
AI estimated
18.4%

4 photos range 15.8–18.4 %; shown is one of the two that agree most closely.

LowSide photosource
Heel bevel length
AI estimated
15.3%*

4 photos range 10–17.2 %; shown is the average of the two that agree most closely (* the photos disagree by more than usual).

LowSide photosource
Heel bevel height
AI estimated
20mm*

4 photos range 20–27 mm; shown is the average of the two that agree most closely (* the photos disagree by more than usual).

LowSide photosource
Midsole width (forefoot)
Externally measured
117.3mm
MediumLab testsource
Midsole width (heel)
Externally measured
91.6mm
MediumLab testsource
Toe box shape
AI estimated
75%

2 photos range 75–76 %; shown is the average of the two that agree most closely.

LowTop photosource
Interior forefoot width
Externally measured
94.6mm
MediumLab testsource
Toebox width
Externally measured
74.6mm
MediumLab testsource

Stiffness

Longitudinal stiffness
Derived
34/ 100

Lab reading: 14.5 N, force to bend the shoe 30° (lab bending test); the score is our 0–100 rescaling of it.

MediumLab flex testsource
Midsole firmness
Derived
59/ 100

Lab reading: 35.7 Asker C, midsole durometer reading (higher = firmer); the score is our 0–100 rescaling of it.

MediumLab durometersource

How it compares

Appears in:Longer toe rocker

Compare:On Cloudultra Pro vs ASICS Trabuco Max 5On Cloudultra Pro vs Brooks Cascadia 20

Wrong value? Missing data? Tell me
Stored only to improve the site; see privacy.

Sources

  • On Cloudultra Pro Men's Shoes Ivory/Celeste | Running WarehouseretailerRunning Warehouseaccessed 2026-10-04open ↗
  • On Cloudultra Pro Review: Can't Rattle This Snake | Believe in the RunreviewBelieve in the Runaccessed 2026-10-04open ↗
  • on-cloudultra-pro lateral product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • on-cloudultra-pro lateral product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • on-cloudultra-pro medial product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • on-cloudultra-pro medial product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • Cut in half: On Cloudultra Pro Review (2026) | RunRepeatlabRunRepeataccessed 2026-10-04open ↗
  • on-cloudultra-pro top product photoimageRunning Warehouseaccessed 2026-10-04open ↗
  • on-cloudultra-pro sole product photoimageRunning Warehouseaccessed 2026-10-04open ↗
Technical detail: every recorded value, method and version (31)

All approved observations

Every recorded value, including superseded ones. The displayed value per metric is chosen by precedence (measured › stated › derived › AI estimated), then confidence, then recency. 60 further observations awaiting review.

MetricValueClassConfidenceMethodSourceRecorded
Heel-to-toe drop6 mmStatedMediumSpec listingRunning Warehouse2026-10-04
Heel stack38.5 mmStatedLowSpec listingBelieve in the Run2026-10-04
Forefoot stack32.5 mmStatedLowSpec listingBelieve in the Run2026-10-04
Weight264 g (US M9)StatedMediumSpec listingBelieve in the Run2026-10-04
Weight261 gStatedMediumSpec listingRunning Warehouse2026-10-04
Rocker apex59.7 %est.LowSide photoRunning Warehouse2026-10-04
Rocker apex59.6 %est.LowSide photoRunning Warehouse2026-10-04
Rocker radius62 %est.LowSide photoRunning Warehouse2026-10-04
Rocker radius63 %est.LowSide photoRunning Warehouse2026-10-04
Rocker rise angle26 degest.LowSide photoRunning Warehouse2026-10-04
Rocker rise angle25 degest.LowSide photoRunning Warehouse2026-10-04
Rocker angle at toe64 degest.LowSide photoRunning Warehouse2026-10-04
Rocker angle at toe64 degest.LowSide photoRunning Warehouse2026-10-04
Toe tip over ground36 mmest.LowSide photoRunning Warehouse2026-10-04
Toe tip over ground36 mmest.LowSide photoRunning Warehouse2026-10-04
Visible rocker lift onset72.2 %est.LowSide photoRunning Warehouse2026-10-04
Visible rocker lift onset72.3 %est.LowSide photoRunning Warehouse2026-10-04
Toe spring (relative)18.1 %est.LowSide photoRunning Warehouse2026-10-04
Toe spring (relative)18.4 %est.LowSide photoRunning Warehouse2026-10-04
Heel bevel length14.8 %est.LowSide photoRunning Warehouse2026-10-04
Heel bevel length15.8 %est.LowSide photoRunning Warehouse2026-10-04
Heel bevel height20 mmest.LowSide photoRunning Warehouse2026-10-04
Heel bevel height21 mmest.LowSide photoRunning Warehouse2026-10-04
Midsole width (forefoot)117.3 mmMeasuredMediumLab testRunRepeat2026-10-04
Midsole width (heel)91.6 mmMeasuredMediumLab testRunRepeat2026-10-04
Toe box shape75 %est.LowTop photoRunning Warehouse2026-10-04
Toe box shape76 %est.LowTop photoRunning Warehouse2026-10-04
Interior forefoot width94.6 mmMeasuredMediumLab testRunRepeat2026-10-04
Toebox width74.6 mmMeasuredMediumLab testRunRepeat2026-10-04
Longitudinal stiffness34 DerivedMediumLab flex testRunRepeat2026-10-04
Midsole firmness59 DerivedMediumLab durometerRunRepeat2026-10-04

Classes: Manufacturer stated · Externally measured · AI estimated · Derived · User reported. Hover a method for its identifier and algorithm version.

Source notes

  • Running Warehouse: sha256=34ad274d64b374bebc3dc892c3543dc21a9504e64f9ccf78af958ef304386e49; 0.3
  • Running Warehouse: sha256=24591b8e7d26423e64daf72018bca3a153d33c0d1d7f7e757506227298811b2c; 0.3
  • Running Warehouse: sha256=ee1f9dd0fb8f0c53682a99d8ed9e788bc019a0a22b57ca96d10da0fb44103fb2; 0.3
  • Running Warehouse: sha256=b320a6dba2d5159c685f0cd8e158b07bdd48268421e2bb210eb2fceae97482f4; 0.3
  • Running Warehouse: sha256=2b6564f3ccde4f70c3af7753d038bbd95cfafebcd04ace5e7c8e26d7919492ac; 0.1
  • Running Warehouse: sha256=59b75e9453388ef5455b2966b368e22a49595d4a8906566b2bae8e9f913c74fc; 0.1

Shoes with similar geometry

Compare these →

Closest current models from other lines by stack, drop, rocker, toe height, stiffness, firmness, weight and width, whichever both shoes have.

Side profile illustration of the Hoka Speedgoat 7
Hoka
Speedgoat 7
Trail · No plate
Drop
4 mm
Heel
37 mm
Toe rocker
41%

vs this shoe: 2 mm less drop

Side profile illustration of the Merrell Agility Peak 6
Merrell
Agility Peak 6
Trail · Rock plate
Drop
6 mm
Heel
32 mm
Toe rocker
40%

vs this shoe: 7 mm lower heel

Side profile illustration of the NNormal Cadi
NNormal
Cadi
Trail · No plate
Drop
6 mm
Heel
35 mm
Toe rocker
39%

vs this shoe: 4 mm lower heel

Side profile illustration of the Hoka Tecton X 4
Hoka
Tecton X 4
Trail · Carbon plate
Drop
5 mm
Heel
39 mm
Toe rocker
37%

Very close on every shared measure