On Cloudflow 5  Running Shoe Review

Reviewed Nov 19, 2025 at 09:00am
Tested using Methodology v0.8.2 
On Cloudflow 5
6.0
Marathon Racing 
5.9
5K/10K Racing 
1.3
Energy Return 
6.7
Cushioning 
7.6
Lateral Stability 
 0

We've tested these running shoes to expand our database and allow users to compare results to help with their buying decisions. We don't expect to write a full review, but if you have any questions about this product, please let us know!

Our Verdict

6.0
Marathon Racing 
5.9
5K/10K Racing 
1.3
Energy Return 
6.7
Cushioning 
7.6
Lateral Stability 
  • 6.0
    Marathon Racing
  • 5.9
    5K/10K Racing

  • Performance Usages

  • 1.3
    Energy Return
  • 6.7
    Cushioning
  • 7.6
    Lateral Stability
  • Changelog

    1.  Updated Nov 19, 2025: Review published.
    2.  Updated Nov 11, 2025: Early access published.
    3.  Updated Jun 06, 2025: Our testers have started testing this product.
    4.  Updated Jun 05, 2025: The product has arrived in our lab, and our testers will start evaluating it soon.

    Differences Between Sizes And Variants

    We've tested these running shoes to expand our database and allow users to compare results to help with their buying decisions. We don't expect to write a full review, but if you have any questions about this product, please let us know!

    How We Test Running Shoes
    How We Test Running Shoes

    We've recently started buying and testing running shoes with a very data-oriented approach. While we're just getting started, our methodology already has dozens of tests to help you make the right purchasing decision for your needs. Not only do we use high-end equipment to gather objective data, but we also order multiple sizes of the same shoes for team members to be able to log in miles. This real-world testing is done at various paces and conditions, and with different types of workouts, to cover all the bases. This allows us to verify our results and ensure they align with what you might feel with a specific pair.

    Test Results

    perceptual testing image
    Sort:
    RATINGS
    Category:
    All
    Design
    5.7
    Weight
    Weight
    269.2 g (9.50 oz)
    Stack Heights
    Heel Stack Height
    38.9 mm
    Forefoot Stack Height
    33.2 mm
    Heel-To-Toe Drop
    5.7 mm
    Advertised Heel-To-Toe Drop
    N/A
    External Shape
    Outsole Heel Width
    83 mm (3.3")
    Outsole Arch Width
    78 mm (3.1")
    Outsole Forefoot Width
    109 mm (4.3")
    Heel Width-To-Stack Ratio
    2.13
    Forefoot Width-To-Stack Ratio
    3.28
    Internal Shape
    Internal Length
    278 mm (10.9")
    Internal Heel Width
    67 mm (2.6")
    Internal Forefoot Width
    91 mm (3.6")
    Wide Sizing Available
    No
    Other Features
    Tongue Gusset Type
    Fully-gusseted
    Plate
    Plastic
    Performance
    0.5
    Heel Energy Return
    See details on graph tool
    Heel Energy Return
    60.2%
    1.6
    Forefoot Energy Return
    See details on graph tool
    Forefoot Energy Return
    66.9%
    6.2
    Heel Cushioning
    See details on graph tool
    Energy Absorbed At 550N
    2.94 J
    Energy Absorbed At 1100N
    7.84 J
    Energy Absorbed At 1900N
    13.53 J
    7.2
    Forefoot Cushioning
    See details on graph tool
    Energy Absorbed At 800N
    4.22 J
    Energy Absorbed At 1300N
    7.56 J
    Energy Absorbed At 2050N
    11.85 J
    6.3
    Heel Firmness
    See details on graph tool
    Firmness At 550N
    63.0 N/mm
    Firmness At 1100N
    132.4 N/mm
    Firmness At 1900N
    242.0 N/mm
    7.6
    Forefoot Firmness
    See details on graph tool
    Firmness At 800N
    112.9 N/mm
    Firmness At 1300N
    210.6 N/mm
    Firmness At 2050N
    326.3 N/mm