On Women's Cloud X 4 Sneakers - Lightweight Training Shoe

In this review of the Cloud X 4 Sneakers the bottom line is simple: these are a versatile, ultra lightweight training shoe that works best for fitness-focused women who want a comfortable, nimble shoe for workouts and short runs. The Cloud X 4 is born from running but designed for everything, offering a noticeably softer underfoot feel thanks to a redesigned Speedboard and enhanced midsole cushioning. For anyone prioritizing low weight, breathability, and a flexible forefoot in a training shoe, this model delivers most of what matters.

Key Features

• Ultra lightweight design: The shoe feels noticeably light during cardio and HIIT sessions, reducing leg fatigue over repeated intervals.
• Speedboard forefoot: A new Speedboard design increases forefoot flexibility, helping toe-off feel more natural on short runs and quick transitions.
• Cushioned collar and soft insole: The padded collar and super-soft insole add everyday comfort for gym sessions and no-load activities.
• Perforated panels and recycled materials: Perforations and high recycled polyester content improve breathability while using sustainable materials in the upper.
• Rubber sole with reflective accents: Durable rubber underfoot provides traction for road running and training, while reflective accents increase visibility in low light.

Who It's For

The Cloud X 4 is aimed at women who mix running with varied training: gym circuits, HIIT, short runs up to 5K, and cardio classes. It suits runners who value a light, responsive platform and breathable upper, and who prefer a softer feel underfoot rather than maximum structured support.

Shoppers who need pronounced arch support, long-distance stability for marathon training, or a very wide fit should look elsewhere, since customer feedback notes mixed results on arch support and some report the sizing runs small for certain foot shapes.

Pros & Cons

Pros

• Very comfortable and soft underfoot, ideal for repeated gym sessions and short runs.
• Lightweight construction keeps the shoe feeling nimble during fast-paced workouts.
• Well-made upper with perforations and reflective accents balances breathability and visibility.
• Flexible forefoot from the new Speedboard improves toe-off during sprints and transitions.

Cons

• Sizing is reported as mixed and may run small for some customers, so trying on or sizing up may be necessary.
• Arch support receives mixed feedback and may not satisfy users needing strong structural support.

Specifications

Brand	On
Model	Cloud X 4
Intended use	Training, cardio, HIIT, short runs, 5K
Upper materials	Recycled polyester 92% with perforated panels
Midsole	Redesigned Speedboard for forefoot flexibility and softer cushioning
Outsole	Rubber sole
Additional features	Reflective accents, cushioned collar, super-soft insole

Our Verdict

The Cloud X 4 is an excellent pick for women who want a lightweight, comfortable training shoe that handles gym work, HIIT, and short runs with ease. It combines a softer underfoot feel and improved forefoot flexibility, making it worth choosing if comfort and low weight are priorities; those needing firm arch support or precise sizing may need to try before buying.

Frequently Asked Questions

Do these run true to size?
Customers give mixed feedback; several report they run small, so consider trying them on or sizing up if between sizes.

Are they good for running?
Yes, they are well suited to short runs and 5K distances, but they are primarily designed as a versatile training shoe rather than for long-distance road marathons.

What are they made from?
The upper includes recycled polyester (92%) and recycled TPU content, with perforated panels for breathability.