On Cloudmonster 3
Road Daily Trainer

On Cloudmonster 3

A firm, rockered daily trainer that divides testers: some praise its stable, poppy ride and improved upper for easy miles and recovery, while others find the CloudTec cushioning dated and heavy against modern foam rivals.

"rewards a fast foot turnover" — The Run Testers
Physical blueprint

Where this shoe sits

Weight 295 g
Heel stack 40.0 mm
Drop 6.0 mm
Cushioning High

Best for

Daily TrainingRecovery & Easy
Suits Forefoot, Heel, Midfoot strikers
Pronation Neutral
Surface Road
Lifespan good mi

Specifications

Weight (M9)
295g (10.4 oz)
Stack (Heel)
40.0 mm
Stack (Forefoot)
34.0 mm
Drop
6.0 mm
Midsole
Helion (EVA/OBC) with triple CloudTec layers
Plate
Nylon (Embedded Speedboard)
Outsole
Rubber compound
Upper
Engineered mesh
Lacing
Traditional

Fit Profile

Length
True To Size
Forefoot Width
Standard
Lockdown
Good
Sizing
True To Size

Ride Characteristics

Cushioning
High
Feel
Firm Responsive
Energy Return
Moderate
Stability
Neutral
Rocker
Aggressive
Transition
Aggressive Forward
Bounce
Muted

Durability

Expected Miles
good
Outsole
Above Average

Expert reviews · 6 reviewers · grouped per channel

BI
Ben Is Running Youtube

Returns to what made the original Cloudmonster great: a stable, comfortable, poppy daily trainer — the reviewer's pick of the two over the Hyper 3.

Best for: Stable daily-training miles, easy runs, and long runs — especially useful when coming back from a niggle.

62 miles tested · source
DO
Doctors of Running Youtube

A firmer, more rockered run-walk shoe that excels for easy jogging and all-day walking but is not suited for fast running; the upper is much improved over v2.

Best for: Easy daily miles, long days on feet, and walking/run-walk use rather than fast running.

50 miles tested · source
+1 earlier review from Doctors of Running

Dave positions the Cloudmonster 3 as a structured, firm, rockered daily trainer best suited to easy shuffling paces and lifestyle crossover, noting meaningful upper improvements over the v2.

Best for: Daily easy miles and lifestyle crossover use for runners who want a structured, firm, cushioned On experience.

E
EDDBUD Youtube

A refined, characterful daily trainer that leans responsive and stable rather than plush, working best at steady to tempo paces.

Best for: Daily to steady-pace running for runners who prefer responsive over squashy cushioning

FR
FORDY RUNS Youtube

A dated, overpriced max-stack daily trainer whose EVA CloudTec tech no longer competes with modern foam rivals; one to avoid.

Best for: Easy aerobic miles or casual wear

RM
Run Moore Youtube

A high-cushion performance trainer that outperforms expectations — the reviewer's favorite shoe so far this year thanks to its stiff, snappy feel with genuine long-run protection.

Best for: Runners who want a stiffer, high-cushion performance trainer that handles long easy days and track work alike; especially good for returning from minor injuries thanks to the stable ride.

TR
The Run Testers Youtube

Not a hit for this reviewer — the CloudTec cushioning feels dated and weighty versus modern foams, delivering little energy return or protection at a price that has climbed to make the value proposition worse against cheaper, livelier alternatives.

Best for: Fans of classic On CloudTec cushioning and anyone who loved the Cloudmonster 2; otherwise hard to recommend given the competition.

28 miles tested · source

Where it sits among similar shoes

Compared to other road daily trainer in the same lane.

Weight · lower = lighter Men's size 9
On Cloudmonster 3
295g
ASICS Gel-Kayano 32
298g
Adidas Adizero Prime X 3 Strung 3
286g
New Balance 880 15
281g
Heel stack · higher = more cushioning mm
On Cloudmonster 3
40.0mm
ASICS Gel-Kayano 32
40.0mm
Adidas Adizero Prime X 3 Strung 3
48.0mm
New Balance 880 15
38.0mm
Drop · higher = more heel-leaning mm
On Cloudmonster 3
6.0mm
ASICS Gel-Kayano 32
8.0mm
Adidas Adizero Prime X 3 Strung 3
7.0mm
New Balance 880 15
6.0mm

On Cloudmonster 3

Data-driven recommendation backed by expert reviews.

Ask the advisor
Methodology. Specs come from manufacturer data and authoritative third-party catalogs. Reviewer verdicts are summarized from named, linked sources — never copied verbatim. We weight clinical and lab-tested sources more heavily than community commentary, but the specific weights stay internal. Never sponsored, never paid placement.
Last updated 2026-05-05