On Running
Cloudflow 4 Running Shoe - Men's
$159.95
Free shipping
Free shipping on orders over $60
In-store pickup · Check our 4 Memphis-area stores
30-day returns, even if you've run in them
The Grivet Take
The Cloudflow 4 is On's tempo-and-race trainer with an integrated Speedboard plate, sitting between the everyday Cloudswift and the carbon-plated Cloudboom Strike. 31/22 stack with a 9mm drop, Helion foam, ~8.6 oz men's. Best for tempo workouts, 5k-10k racing, and daily training where you want plate-assisted snap. Skip it for max-cushion long runs; the Cloudflow is built for pace and shorter distances.
Fit & Feel snapshot
Fit
LengthHow the shoe fits compared with true-to-size expectations.
True to size
Toe box widthHow much side-to-side room the shoe has across the front of the foot.3 of 5
NarrowWide
Toe box volumeHow much vertical room the shoe has above the toes.3 of 5
LowHigh
MidfootHow snug or roomy the shoe feels through the arch and laces.3 of 5
SnugRoomy
Heel holdHow securely the back of the shoe holds the heel.4 of 5
LooseLocked
Ride
CushionHow much material sits underfoot. This is about amount of cushioning, not how soft it feels.3 of 5
MinimalMaximal
SoftnessHow soft or firm the cushioning feels underfoot.3 of 5
FirmPlush
RockerHow much the shoe's shape rolls you forward through the step.4 of 5
FlatAggressive
ResponsivenessHow much pop or energy return the shoe feels like it gives back.4 of 5
DeadBouncy
Support
Support TypeSupport Type describes how much built-in guidance the shoe has. Neutral shoes do not add support structure. Stability shoes use geometry, rails, firmer foam, or frame designs to create a more guided feel. Motion control shoes are the maximum-support category and are rare in modern running.
Neutral
Stability
Motion Control
No added support structure
PlatformPlatform describes the width and shape of the shoe's base underfoot. A wider platform can feel steadier even when the shoe is neutral. This is separate from Support Type.
Standard platform
How it fits
Fits true to size with a standard On last. Toe box runs standard width with normal vertical room. Available in Standard (D) only for men's.
How it feels
Cushion is moderate; Helion foam plus integrated Speedboard plate produces a snappy, responsive ride suited to tempo and racing. The 9mm drop and pronounced rocker carry the foot through toe-off. Energy return is good for the daily-trainer category.
Quick specs
- Category
- Daily trainer
- Surface
- Pavement · Treadmill · Track
- Heel stackHow much shoe sits between your foot and the ground.
- 31.0 mm
- Forefoot stack
- 22.0 mm
- DropThe difference between heel height and forefoot height, measured in millimeters.
- 9.0 mm
- Weight (men's 9)
- 8.6 oz · 244 g
- CushionHow much material sits underfoot. This is about amount of cushioning, not how soft it feels.
- 3 / 5
- Support TypeSupport Type describes how much built-in guidance the shoe has. Neutral shoes do not add support structure. Stability shoes use geometry, rails, firmer foam, or frame designs to create a more guided feel. Motion control shoes are the maximum-support category and are rare in modern running.
- Neutral
- PlatformPlatform describes the width and shape of the shoe's base underfoot. A wider platform can feel steadier even when the shoe is neutral. This is separate from Support Type.
- Standard platform
- Midsole
- Helion
- Outsole
- rubber
- PlateA stiff layer, usually carbon, nylon, or TPU, built into some shoes to add structure, snap, or propulsion.
- Speedboard
- WidthsThe width options this shoe is made in. Actual availability depends on current inventory.
- D
Tech, translated
Helion is On's lightweight EVA-blend midsole.
Speedboard is On's plate technology integrated into the midsole — provides snap and roll without the rigid feel of a full carbon plate.
Compare it toSimilar shoes or common alternatives, with the key fit and ride differences called out.
On Cloud 6
Choose the Cloudflow 4 if you want a tempo-capable trainer with an integrated Speedboard plate at a 9mm drop. Choose the Cloud 6 if you want a plateless EVA everyday shoe at a softer 6mm drop and a lower 26mm stack for casual wear.
Compare On Cloud 6 →
Saucony Endorphin Speed 4
Choose the Cloudflow 4 if you want On's Helion midsole with an integrated Speedboard at a 9mm drop. Choose the Endorphin Speed 4 if you want Saucony's PWRRUN PB PEBA foam with a nylon plate at an 8mm drop for a softer, springier tempo feel.
Compare Saucony Endorphin Speed 4 →
Hoka Mach 6
Choose the Cloudflow 4 if you want an integrated Speedboard plate and a higher 9mm drop. Choose the Mach 6 if you want Hoka's plateless supercritical EVA midsole with Meta-Rocker geometry at a low 5mm drop for a smoother roll-through.
Compare Hoka Mach 6 →
Saucony Endorphin Speed 5
Choose the Cloudflow 4 if you want On's Helion ride with a Speedboard at a 9mm drop. Choose the Endorphin Speed 5 if you want Saucony's latest PWRRUN PB PEBA tempo trainer with a nylon plate and the sharper updated grip pattern.
Compare Saucony Endorphin Speed 5 →
Buyer's guide
Read our running shoes guide
A clear framework for picking running shoes by surface, cushion, drop, stability, and fit.
Read the guide