On Cloudmonster 2 vs Cloudsurfer 2

Which Running Shoe Is Better?

Products

On Cloudmonster 2
On Cloudsurfer 2

Tested using Methodology v0.9

Updated Dec 16, 2025 03:43 PM

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Amazon.com

Tested using Methodology v0.8.2

Updated Feb 10, 2026 01:58 PM

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Our Verdict

On Cloudmonster 2

On Cloudsurfer 2

The On Cloudsurfer 2 and the On Cloudmonster 2 offer two distinct experiences within On's daily training lineup. The Cloudsurfer 2 is a classic daily trainer, with a moderate stack height, lighter weight, and an early-stage rocker that promotes smooth transitions at easier paces. Its firm underfoot emphasizes ground feel and control over plushness or bounce. The Cloudmonster 2, on the other hand, is On's maximalist option: higher stacked, more cushioned, and noticeably more energetic thanks to a more responsive midsole. While both shoes are on the firmer side overall, the Cloudmonster 2 feels slightly softer and more forgiving.

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Variants

  • Cloudmonster 2 (Asphalt/Iron - (Women - US 7))
  • Cloudmonster 2 (Asphalt/Iron - (Men - US 9))
  • Cloudsurfer 2 (Black/Black - (Men - US 9))
  • Cloudsurfer 2 (Black/Black - (Women - US 7))
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Main Differences for
Marathon Racing

Threshold 

0.10

Marathon Racing 
 

0.0
0.0
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Plate 
 

Locked
Locked

Full Comparison

Design

Weight  

N/A
N/A

Right Shoe Weight Photo 
 

On Cloudmonster 2 Right Shoe Weight Photo Sample

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On Cloudsurfer 2 Right Shoe Weight Photo Sample

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Left Shoe Weight Photo 
 

On Cloudmonster 2 Left Shoe Weight Photo Sample

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On Cloudsurfer 2 Left Shoe Weight Photo Sample

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Weight 
 

Lock g (Lock oz)
Lock g (Lock oz)
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Stack Heights 
 

Stack Height Photo 
 

On Cloudmonster 2 Stack Height Photo Sample

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On Cloudsurfer 2 Stack Height Photo Sample

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Heel Stack Height 
 

Lock mm
Lock mm

Forefoot Stack Height 
 

Lock mm
Lock mm

Heel-To-Toe Drop 
 

Lock mm
Lock mm

Advertised Heel-To-Toe Drop 
 

Lock mm
Lock mm

External Shape 
 

3D Model Full Shoe  

On Cloudmonster 2 3D Model Full Shoe Sample

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On Cloudsurfer 2 3D Model Full Shoe Sample

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Outsole Heel Width 
 

Lock mm (Lock")
Lock mm (Lock")

Outsole Arch Width 
 

Lock mm (Lock")
Lock mm (Lock")

Outsole Forefoot Width 
 

Lock mm (Lock")
Lock mm (Lock")

Heel Width-To-Stack Ratio 
 

Lock
Lock

Forefoot Width-To-Stack Ratio 
 

Lock
Lock
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Internal Shape 
 

3D Model Internal  

On Cloudmonster 2 3D Model Internal Sample

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On Cloudsurfer 2 3D Model Internal Sample

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Internal Length 
 

Lock mm (Lock")
Lock mm (Lock")

Internal Heel Width 
 

Lock mm (Lock")
Lock mm (Lock")

Internal Forefoot Width 
 

Lock mm (Lock")
Lock mm (Lock")

Wide Sizing Available 
 

Locked
Locked

Other Features  

Other Features Photo 
 

On Cloudmonster 2 Other Features Photo Sample

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On Cloudsurfer 2 Other Features Photo Sample

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Tongue Gusset Type 
 

Locked
Locked

Plate 
 

Locked
Locked
Performance

Heel Energy Return 
 

N/A
N/A

Heel Compression Video  

On Cloudmonster 2 Heel Compression Video Sample

SAMPLE

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On Cloudsurfer 2 Heel Compression Video Sample

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Heel Energy Return  

On Cloudmonster 2 Heel Energy Return Sample

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On Cloudsurfer 2 Heel Energy Return Sample

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Heel Energy Return 
 

Lock%
Lock%
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Forefoot Energy Return 
 

N/A
N/A

Forefoot Compression Video  

On Cloudmonster 2 Forefoot Compression Video Sample

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On Cloudsurfer 2 Forefoot Compression Video Sample

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Forefoot Energy Return  

On Cloudmonster 2 Forefoot Energy Return Sample

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On Cloudsurfer 2 Forefoot Energy Return Sample

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Forefoot Energy Return 
 

Lock%
Lock%
Show Text 

Heel Cushioning 
 

N/A
N/A

Heel Cushioning Picture 
 

On Cloudmonster 2 Heel Cushioning Picture Sample

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On Cloudsurfer 2 Heel Cushioning Picture Sample

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Heel Cushioning  

On Cloudmonster 2 Heel Cushioning Sample

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On Cloudsurfer 2 Heel Cushioning Sample

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Energy Absorbed At 550N 
 

Lock J
Lock J

Energy Absorbed At 1100N 
 

Lock J
Lock J

Energy Absorbed At 1900N 
 

Lock J
Lock J
Show Text 

Forefoot Cushioning 
 

N/A
N/A

Forefoot Cushioning Picture 
 

On Cloudmonster 2 Forefoot Cushioning Picture Sample

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On Cloudsurfer 2 Forefoot Cushioning Picture Sample

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Forefoot Cushioning  

On Cloudmonster 2 Forefoot Cushioning Sample

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On Cloudsurfer 2 Forefoot Cushioning Sample

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Energy Absorbed At 800N 
 

Lock J
Lock J

Energy Absorbed At 1300N 
 

Lock J
Lock J

Energy Absorbed At 2050N 
 

Lock J
Lock J
Show Text 

Heel Firmness 
 

N/A
N/A

Heel Firmness  

On Cloudmonster 2 Heel Firmness Sample

SAMPLE

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On Cloudsurfer 2 Heel Firmness Sample

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Firmness At 550N 
 

Lock N/mm
Lock N/mm

Firmness At 1100N 
 

Lock N/mm
Lock N/mm

Firmness At 1900N 
 

Lock N/mm
Lock N/mm
Show Text 

Forefoot Firmness 
 

N/A
N/A

Forefoot Firmness  

On Cloudmonster 2 Forefoot Firmness Sample

SAMPLE

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On Cloudsurfer 2 Forefoot Firmness Sample

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Firmness At 800N 
 

Lock N/mm
Lock N/mm

Firmness At 1300N 
 

Lock N/mm
Lock N/mm

Firmness At 2050N 
 

Lock N/mm
Lock N/mm
Show Text 

Forefoot Long Run Cushioning 
 

N/A
N/A

Forefoot Long Run Cushioning  

On Cloudmonster 2 Forefoot Long Run Cushioning Sample

SAMPLE

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On Cloudsurfer 2 Forefoot Long Run Cushioning Sample

SAMPLE

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Energy Absorbed At 10km 
 

Lock J

Energy Absorbed At 20km 
 

Lock J

Energy Absorbed At 30km 
 

Lock J

Energy Absorbed At 40km 
 

Lock J

On Cloudmonster 2

On Cloudsurfer 2

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  1. Comparison

On Cloudmonster 2 vs On Cloudsurfer 2: Main Discussion

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