ShoeGeometry

On Cloudmonster 3

Max cushionRoadNylon plate2026Men'sCurrent

Specifications

Heel-to-toe drop
Manufacturer stated
6mm
Mediumregex_specs_v2source
Heel stack
Manufacturer stated
35mm
Mediumregex_specs_v2source
Forefoot stack
Manufacturer stated
29mm
Mediumregex_specs_v2source
Weight
Manufacturer stated
295g
Mediumregex_specs_v2size 9source
Plate
Nylon plate
Primary foam
Helion
List price
$190

Plate, foam and price from On Cloudmonster 3 Review: Improved, But Barely | Believe in the Run.

Geometry

Catalogue average: heel 39 mm, forefoot 32 mm, rocker apex 65 %On Cloudmonster 3: heel 35 mm, forefoot 29 mm (drop 6 mm); rocker apex 64 % of length, radius 44 % of length.35 mm29 mmRocker apex at 64 % of length from the heelrocker apex 64 %toeheel
Forefoot: rocker apex later earlierRear: heel stack lower higher not measured
Dashed: average of the catalogue
Drawn from the measured values, to scale for a 290 mm shoe; the grey upper is a generic outline, not this shoe’s. On Cloudmonster 3: heel 35 mm, forefoot 29 mm (drop 6 mm); rocker apex 64 % of length, radius 44 % of length.

Percent values are relative to shoe length so they compare across images and sizes; millimetre values are lab measurements from the cited source. See how rocker geometry is defined.

Rocker apex
AI estimated
63.7%
Mediumvision_rocker · 0.3-bc1source
Rocker radius
AI estimated
44%
Mediumvision_rocker · 0.3-bc1source
Rocker rise angle
AI estimated
30deg
Mediumvision_rocker · 0.3-bc1source
Rocker angle at toe
AI estimated
56deg
Lowvision_rocker · 0.3-bc1source
Toe tip over ground
AI estimated
49mm

Average of two photos 0 mm apart.

Lowvision_rocker · 0.3-bc1source
Visible rocker lift onset
AI estimated
73.2%
Lowvision_rocker · 0.3-bc1source
Toe spring (relative)
AI estimated
20.1%
Lowvision_rocker · 0.3-bc1source
Midsole width (forefoot)
Externally measured
113.7mm
Mediumlab_table_widths · 1source
Midsole width (heel)
Externally measured
90.2mm
Mediumlab_table_widths · 1source
Interior forefoot width
Externally measured
94.3mm
Mediumlab_table_widths · 1source
Toebox width
Externally measured
71mm
Mediumlab_table_widths · 1source

Stiffness

Longitudinal stiffness
Derived
66/ 100
Mediumlab_bending_force_score · 1source
Midsole firmness
Derived
100/ 100
Mediumlab_midsole_firmness_score · 1source

How it compares

  • On Cloudmonster 3's heel-to-toe drop is 6 mm, lower than the catalogue median of 7 mm (25% of the 91 other current shoes are lower).
  • On Cloudmonster 3's heel stack is 35 mm, thinner than the catalogue median of 39 mm (15% of the 91 other current shoes are thinner).
  • On Cloudmonster 3's forefoot stack is 29 mm, thinner than the catalogue median of 32 mm (21% of the 91 other current shoes are thinner).
  • On Cloudmonster 3's weight is 295 g, heavier than the catalogue median of 268 g (76% of the 82 other current shoes are lighter).

Appears in:Max cushionEarlier rocker

Compare:On Cloudmonster 3 vs On Cloudmonster 2On Cloudmonster 3 vs Altra Via Olympus 2Previous version: On Cloudmonster 2

What changed from the On Cloudmonster 2

Stack lower, rocker apex starts later, plate changed. Compared with the previous version in this catalogue; differences within measurement noise are shown as about the same.

On Cloudmonster 3: heel 35 mm, forefoot 29 mm (drop 6 mm); rocker apex 64 % of length, radius 44 % of length.On Cloudmonster 3: rocker apex at 64 % of lengthOn Cloudmonster 2: heel 38 mm, forefoot 31 mm (drop 7 mm); rocker apex 59 % of length, radius 48 % of length.On Cloudmonster 2: rocker apex at 59 % of length
  • On Cloudmonster 335/29 mm · apex 64 %
  • On Cloudmonster 238/31 mm · apex 59 %
Midsoles drawn from measured values on a common length (290 mm), heels aligned, toe to the left; dots mark the rocker apex. Dotted lines use typical values where a shoe has no measurement. Exact values are in the table below.
MeasureOn Cloudmonster 2On Cloudmonster 3Change
Heel stack37.9 mm35 mmlower (−2.9 mm)
Forefoot stack31.3 mm29 mmlower (−2.3 mm)
Drop6.6 mm6 mmabout the same
Weight295 g295 gabout the same
Rocker apex58.9% of length63.7% of lengthstarts later (+4.9 %)
Toe tip over ground47.6 mm48.9 mmabout the same
Rocker rise angle27.5°29.9°steeper (+2.5)
Stiffness52/10066/100stiffer (+14)
Firmness100/100100/100about the same
Forefoot base width117.2 mm113.7 mmnarrower (−3.5 mm)
PlateNo plateNylon platechanged
FoamHelion (dual density)Helionchanged

Full side-by-side comparison →

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Sources

  • On Cloudmonster 3 Review (2026) - Doctors of RunningreviewBlueprintaccessed 2026-10-03open ↗
  • On Cloudmonster 3 Review: Improved, But Barely | Believe in the Runreviewbelieveintherun.comaccessed 2026-10-03open ↗
  • on-cloudmonster-3 lateral product photoimageRunning Warehouseaccessed 2026-10-03open ↗sha256=23b979e26685b17f0ff7923952d7b010b09be96eb776030302130b87b0aea217; 0.3
  • on-cloudmonster-3 lateral product photoimageRunning Warehouseaccessed 2026-10-03open ↗sha256=f632bb30fc2ca4431024ea34b93db21b6400204130baf48851fe537f0b5ace0d; 0.3
  • on-cloudmonster-3 medial product photoimageRunning Warehouseaccessed 2026-10-03open ↗sha256=f2b86dc2dd8c7f1e53353ea3208a4807a6b6300bcbddca1dccaebefa5ceaa09f; 0.3
  • on-cloudmonster-3 medial product photoimageRunning Warehouseaccessed 2026-10-03open ↗sha256=bb01acbaf3e167f785ddeb3a7bc5715674f1c2069ca339e264d4ae672035b1df; 0.3
  • on-cloudmonster-3 lateral product photoimageRunning Warehouseaccessed 2026-10-03open ↗sha256=c26c18138ed72b70252f1b2d451847927205639619c12db13cd1e77c03d3f0c9; 0.3
  • on-cloudmonster-3 medial product photoimageRunning Warehouseaccessed 2026-10-03open ↗sha256=20f41e7688f6a77debdb48c5341e47f1eeb0c86acc0137b1eff5b12ea9d5566b; 0.3
  • Cut in half: On Cloudmonster 3 Review (2026) | RunRepeatlabRunRepeat - Athletic shoe reviewsaccessed 2026-10-03open ↗

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. 84 further observations awaiting review.

MetricValueClassConfidenceMethodSourceRecorded
Heel-to-toe drop6 mmStatedMediumregex_specs_v2Blueprint2026-10-03
Heel stack35 mmStatedMediumregex_specs_v2Blueprint2026-10-03
Heel stack35 mmStatedMediumregex_specs_v2believeintherun.com2026-10-03
Forefoot stack29 mmStatedMediumregex_specs_v2Blueprint2026-10-03
Forefoot stack29 mmStatedMediumregex_specs_v2believeintherun.com2026-10-03
Weight295 g (size 9)StatedMediumregex_specs_v2Blueprint2026-10-03
Weight295 g (US M9)StatedMediumregex_specs_v2believeintherun.com2026-10-03
Rocker apex64.1 %est.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Rocker apex63.7 %est.Mediumvision_rocker 0.3-bc1Running Warehouse2026-10-03
Rocker radius44 %est.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Rocker radius44 %est.Mediumvision_rocker 0.3-bc1Running Warehouse2026-10-03
Rocker rise angle30 degest.Mediumvision_rocker 0.3-bc1Running Warehouse2026-10-03
Rocker rise angle30 degest.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Toe tip over ground49 mmest.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Rocker angle at toe56 degest.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Toe tip over ground49 mmest.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Rocker angle at toe56 degest.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Visible rocker lift onset73.1 %est.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Visible rocker lift onset73.2 %est.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Toe spring (relative)20.1 %est.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Toe spring (relative)20.4 %est.Lowvision_rocker 0.3-bc1Running Warehouse2026-10-03
Midsole width (forefoot)113.7 mmMeasuredMediumlab_table_widths 1RunRepeat - Athletic shoe reviews2026-10-03
Midsole width (heel)90.2 mmMeasuredMediumlab_table_widths 1RunRepeat - Athletic shoe reviews2026-10-03
Interior forefoot width94.3 mmMeasuredMediumlab_table_widths 1RunRepeat - Athletic shoe reviews2026-10-03
Toebox width71 mmMeasuredMediumlab_table_widths 1RunRepeat - Athletic shoe reviews2026-10-03
Longitudinal stiffness66 DerivedMediumlab_bending_force_score 1RunRepeat - Athletic shoe reviews2026-10-03
Midsole firmness100 DerivedMediumlab_midsole_firmness_score 1RunRepeat - Athletic shoe reviews2026-10-03

Classes: Manufacturer stated · Externally measured · AI estimated · Derived · User reported.

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 On Cloudeclipse
On
Cloudeclipse
Max cushion · No plate
Drop
6 mm
Heel
37 mm
Apex
61%

Very close on every shared measure

Side profile illustration of the Brooks Ghost Max 4
Brooks
Ghost Max 4
Max cushion · No plate
Drop
6 mm
Heel
39 mm
Apex
60%

vs this shoe: earlier rocker · softer foam · 5 mm lower toe

Side profile illustration of the New Balance FuelCell SuperComp Trainer v3
New Balance
FuelCell SuperComp Trainer v3
Tempo · Carbon plate
Drop
6 mm
Heel
40 mm
Apex
65%

vs this shoe: 9 mm lower toe · 5 mm higher heel

Side profile illustration of the Adidas Adizero Boston 13
Adidas
Adizero Boston 13
Tempo · Plate unknown
Drop
6 mm
Heel
36 mm
Apex
65%

vs this shoe: 40 g lighter · more flexible · 7 mm wider base