Products
On Cloudmonster 2
Mizuno Neo Zen
Tested using Methodology v0.8.2
Updated Oct 22, 2025 07:54 PM
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Amazon.com
Tested using Methodology v0.9
Updated Nov 04, 2025 07:25 PM
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Mizuno
Weight
295.8 g (10.43 oz)
Heel-To-Toe Drop
7.5 mm
Plate
Plastic
Weight
226.3 g (7.98 oz)
Heel-To-Toe Drop
4.9 mm
Plate
None
Our Verdict
On Cloudmonster 2
Mizuno Neo Zen
The Mizuno Neo Zen and the On Cloudmonster 2 are both modern daily trainers, but they sit on opposite ends of the spectrum. The Cloudmonster is significantly firmer and more stable, offering a structured ride that feels controlled. On the other hand, the Neo Zen is much lighter, noticeably more energetic, and exceptionally squishy, delivering a soft, plush experience that prioritizes comfort and protection. While both are designed for daily training, the Cloudmonster 2 leans toward stability, whereas the Neo Zen excels in softness and easy-day comfort, making it a better pick for recovery runs or runners who enjoy a truly maximalist feel.
Variants
- Cloudmonster 2 (Asphalt/Iron - (Women - US 7))
- Cloudmonster 2 (Asphalt/Iron - (Men - US 9))
- Cloudmonster 2 (Asphalt/Lima - (Women - US 7))
- Cloudmonster 2 (Asphalt/Lima - (Men - US 9))
- Cloudmonster 2 (Black/Black - (Men - US 9))
- Cloudmonster 2 (Black/Eclipse - (Women - US 7))
- Cloudmonster 2 (Black/Frost - (Women - US 7))
- Cloudmonster 2 (Cream/Horizon - (Women - US 7))
- Cloudmonster 2 (Cream/Ice - (Women - US 7))
- Cloudmonster 2 (Cream/Ice - (Men - US 9))
- Cloudmonster 2 (Ivory/Red - (Women - US 7))
- Cloudmonster 2 (Ivory/Silver - (Men - US 9))
- Cloudmonster 2 (Mineral/Aloe - (Women - US 7))
- Cloudmonster 2 (Tempest/Horizon - (Men - US 9))
- Cloudmonster 2 (White/Flame - (Women - US 7))
- Cloudmonster 2 (White/Flame - (Men - US 9))
- Cloudmonster 2 (White/Frost - (Women - US 7))
- Neo Zen (Black/Raspberry - (Men - US 9))
- Neo Zen (Black/White - (Women - US 7))
- Neo Zen (Hint Mint/India Ink - (Women - US 7))
- Neo Zen (Nimbus Cloud/Black - (Women - US 7))
- Neo Zen (White/Black - (Men - US 9))
- Neo Zen (White/Frontier Blue - (Men - US 9))
Main Differences for
Marathon Racing
Marathon Racing
Threshold
Marathon Racing
5.9
7.6
Forefoot Energy Return
2.2
7.1
Weight
4.6
7.3
Heel Energy Return
1.5
7.3
Plate
Plastic
None
Full Comparison
Design
Weight
4.6
7.3
Right Shoe Weight Photo
Left Shoe Weight Photo
Weight
295.8 g (10.43 oz)
226.3 g (7.98 oz)
Stack Heights
Stack Height Photo
Heel Stack Height
40.5 mm
41.1 mm
Forefoot Stack Height
33.0 mm
36.2 mm
Heel-To-Toe Drop
7.5 mm
4.9 mm
Advertised Heel-To-Toe Drop
6.0 mm
6.0 mm
External Shape
3D Model Full Shoe
Outsole Heel Width
84 mm (3.3")
92 mm (3.6")
Outsole Arch Width
78 mm (3.1")
79 mm (3.1")
Outsole Forefoot Width
113 mm (4.5")
111 mm (4.4")
Heel Width-To-Stack Ratio
2.07
2.24
Forefoot Width-To-Stack Ratio
3.42
3.07
Internal Shape
3D Model Internal
Internal Length
277 mm (10.9")
275 mm (10.8")
Internal Heel Width
66 mm (2.6")
62 mm (2.4")
Internal Forefoot Width
93 mm (3.7")
93 mm (3.7")
Wide Sizing Available
No
No
Other Features
Other Features Photo
Tongue Gusset Type
Fully-gusseted
Non-gusseted
Plate
Plastic
None
Performance
Heel Energy Return
1.5
7.3
Heel Compression Video
Heel Energy Return
Heel Energy Return
66.5%
77.4%
Forefoot Energy Return
2.2
7.1
Forefoot Compression Video
Forefoot Energy Return
Forefoot Energy Return
68.3%
76.5%
Heel Cushioning
7.2
8.3
Heel Cushioning Picture
Heel Cushioning
Energy Absorbed At 550N
3.37 J
4.24 J
Energy Absorbed At 1100N
9.11 J
10.05 J
Energy Absorbed At 1900N
14.60 J
16.18 J
Forefoot Cushioning
7.3
8.4
Forefoot Cushioning Picture
Forefoot Cushioning
Energy Absorbed At 800N
4.20 J
5.48 J
Energy Absorbed At 1300N
7.85 J
9.10 J
Energy Absorbed At 2050N
11.81 J
12.99 J
Heel Firmness
5.8
5.6
Heel Firmness
Firmness At 550N
48.9 N/mm
47.9 N/mm
Firmness At 1100N
130.8 N/mm
117.4 N/mm
Firmness At 1900N
271.6 N/mm
268.4 N/mm
Forefoot Firmness
7.8
7.9
Forefoot Firmness
Firmness At 800N
100.9 N/mm
98.0 N/mm
Firmness At 1300N
207.5 N/mm
206.9 N/mm
Firmness At 2050N
379.0 N/mm
435.7 N/mm
Forefoot Long Run Cushioning
8.0
Forefoot Long Run Cushioning
Energy Absorbed At 10km
8.88 J
Energy Absorbed At 20km
8.72 J
Energy Absorbed At 30km
8.63 J
Energy Absorbed At 40km
8.53 J
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On Cloudmonster 2
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On Cloudmonster 2 vs Mizuno Neo Zen: Main Discussion
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