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On Cloudmonster 3(2026)

In production · road · Daily / Long run / Recovery · $180

Huge CloudTec pods and a strong rocker — soft with a springboard feel.

Built for daily, long run, recovery, at a target pace of 8:00–11:00 /mi on road.

The spec sheet

Weight
295 g / 10.4 oz
Heel stack
40 mm
Drop
6 mm
Midsole foam
Helion
Plate
Nylon
Cushioning
5 / 5
Energy return
4 / 5
Responsiveness
4 / 5
Rocker
4 / 5
Flexibility
2 / 5
Stability
3 / 5 (5 = most guidance)
Toe-box
Standard
Sizing
True to size
Durability
~450 mi
Price
$180

How it rides

The foam

The midsole is Helion, tuned very soft (5/5 on our cushioning scale). Energy return is above average: the midsole rebounds well without feeling unstable. At 40 mm of heel stack this sits in max-cushion territory; legs stay fresher on long efforts, but the platform is tall. Combined, the ride reads as snappy at 4/5 responsiveness.

The plate

A nylon (or PEBA-blend) plate adds structure without the harsh stiffness of carbon. You get a firmer, more propulsive toe-off that still flexes at slower paces, which is why nylon-plated shoes double as workout and long-run shoes rather than race-day-only tools.

The geometry

A 6 mm drop is the mainstream middle — familiar to almost anyone coming from a standard trainer. The rocker is aggressive: the sole is curved and stiff enough to tip you into the next stride on its own, which saves the calf on long runs but feels strange when you slow right down. The forefoot is stiff, so it rolls rather than bends — a lever, not a slipper. Support is light — neutral, with a mildly steady platform.

Fit, sizing & life

The toe-box is standard width — comfortable for most feet without swimming. It fits true to size. Expect roughly 450 miles from the outsole, about $0.40 per mile at $180.

For the foams and plates On uses across its line, read the On brand guide.

How it compares

Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.

Weight

295 g / 10.4 oz

20 g heavier than the catalog median of 275 g

Heel stack

40 mm

4 mm taller than the catalog median of 36 mm

Drop

6 mm

Level with the catalog median of 6 mm

Price

$180

20 pricier than the catalog median of 160

Responsiveness

4 / 5

Catalog median 3 / 5

Cushioning

5 / 5

Catalog median 4 / 5

Energy return

4 / 5

Catalog median 3 / 5

Durability

~450 mi

Catalog median ~400 mi

Within the On line it is heavier than the brand's median (270 g / 9.5 oz) and sits taller than its median stack (34 mm).

Closest alternatives

Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.

On Cloudmonster 2(2024)

295 g / 10.4 oz · 35 mm · 6 mm drop · Nylon · $180

Oversized CloudTec pods and a strong rocker — soft with an odd, fun bounce.

Adidas Adizero EVO SL ATR

287 g / 10.1 oz · 39 mm · 6 mm drop · Nylon · $160

Adidas Adizero EVO SL ATR: 39 mm heel stack, 6 mm drop, 264 g — specs from independent lab testing.

Mizuno Neo Vista 2(2025)

266 g / 9.4 oz · 44 mm · 8 mm drop · Nylon · $175

Plateless max-stack Enerzy NXT — soft, wide and surprisingly light.

On Cloudeclipse 2

290 g / 10.2 oz · 42 mm · 6 mm drop · — · $190

Double-layer CloudTec for On's softest long-run ride.

Brooks Hyperion Max 3

281 g / 9.9 oz · 46 mm · 6 mm drop · Nylon · $180

Plated super trainer with DNA Flash v2 for workouts and long efforts.

Lineage & siblings