On Cloud X 4 Training Shoe
- Cross-training shoe for workouts, HIIT and short runs
- Redesigned Speedboard for forefoot flexibility
- Softer, moderate cushioning
- Star lacing closure
- 92% recycled polyester, 37% recycled TPU
- 3.73 ounces listed weight
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A versatile On training shoe for gym workouts, HIIT, cardio and short runs, with a flexible Speedboard and softer cushioning. It is not built for long runs or trails, and box contents are not listed.
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ASIN: B0CN936K4JModel: Cloud X 4Category: Women's Athletic Shoes
Colors Available
Sizes Available
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Overview
Not a dedicated long distance runner, the On Cloud X is a training shoe built for workouts, HIIT, cardio and short runs. A redesigned Speedboard adds forefoot flexibility, and a softer cushioned feel underfoot handles mixed gym sessions.
Choose it for one shoe that handles gym classes and the occasional short run, made with high recycled content. The listing gives no box contents or sizing detail.
Who it's for
Gym goers who switch between cardio machines, HIIT circuits and quick runs get flexibility and cushioning in one pair. Long distance runners should choose a dedicated running shoe.
Pros and cons
- Versatile for workouts and short runs
- Flexible forefoot Speedboard
- High recycled content
- Secure star lacing
- Not for long distance running
- Not water resistant
Performance notes
The Speedboard flexes at the forefoot for agility in workouts, while the softer foam cushions landings. Star lacing secures the fit across the top of the foot.
Specifications
| Brand | On |
|---|---|
| Model | Cloud X 4 |
| Dimensions & fit | |
| Item weight | 3.73 ounces |
| Capacity & performance | |
| Recycled content | 92% recycled polyester, 37% recycled TPU |
| Construction & materials | |
| Outer Material | Polyester |
| Insole Material | Ethylene vinyl acetate |
| Sole Material | Rubber |
| Color | Black/Eclipse |
| Other details | |
| Cushioning Level | Moderate |
| Lace Closure | Star lacing |
| Water Resistance Level | Not water resistant |
| Best for | Workouts, low load, cardio, HIIT, short runs, 5K runs |
| Plate | Speedboard |
| Sport Type | Cross-trainer |
| Style Name | Cloud X 4 |
| Lining | Recycled polyester |
Frequently asked questions
What comes in the box with the On Cloud X 4?
The listing does not detail the box contents beyond the shoes.
Can I run in the On Cloud X 4?
Yes, for short runs; On lists short runs and 5K runs among its uses, alongside workouts and HIIT.
Is the On Cloud X 4 waterproof?
No. The spec table lists it as not water resistant.