On Cloud X 3 Cross-Training Running Sneaker 3WF30324309
On Cloud X 3 — The Athlete’s All-Day Training Shoe
The On Cloud X 3 in style 3WF30324309 is On Running’s most refined expression of cross-training performance — a shoe built for athletes who demand the same level of engineering from their training footwear as they do from their running shoes. The third generation of the Cloud X refines the platform that has made it one of the most trusted training shoes in functional fitness, delivering CloudTec® phase cushioning, Helion™ superfoam, and a construction that transitions seamlessly from the gym floor to the track to the street. Style 3WF30324309 brings that formula to a women’s-specific fit and a considered colorway built for performance and everyday versatility.
Design Philosophy
The Cloud X was designed with a specific athlete in mind: someone who trains hard across multiple disciplines and refuses to compromise on footwear. The third generation builds on that foundation with updated foam compounds, improved upper construction, and a refined fit system that delivers the precision and lockdown demanded by high-intensity training without sacrificing the all-day comfort required for extended wear. The 3WF30324309 colorway reflects that dual purpose — a shoe that performs in the gym and holds its own everywhere else.
Key Features
- Upper: Engineered mesh with targeted support zones for breathability, lateral lockdown, and durability across multi-directional training movements
- Cushioning: CloudTec® phase cushioning for adaptive, surface-responsive comfort — soft on impact, firm and propulsive on push-off
- Midsole: Helion™ superfoam for ultra-lightweight, resilient cushioning with superior energy return across high- and low-impact activities
- Outsole: Durable rubber outsole with multi-directional tread pattern for reliable grip on gym floors, turf, and pavement
- Stability: Wide, flat base geometry for a grounded, stable platform during strength training and functional movement
- Fit: Women’s-specific last for a precise, anatomical fit tailored to female foot geometry
- Heel: Structured heel counter for precise rearfoot support and secure lockdown during high-intensity movements
- Lining: Moisture-wicking textile lining for sustained comfort through demanding training sessions
- Closure: Lace-up system with reinforced eyelets for a secure, customizable fit
Product Specifications
- Style Code: 3WF30324309
- Model: Cloud X 3
- Brand: On (On Running)
- Category: Cross-Training / Functional Fitness Sneaker
- Gender: Women’s (EU 35–39)
- Key Technologies: CloudTec®, Helion™ superfoam
- Best For: Strength training, HIIT, functional fitness, light running, all-day wear
- Colorway: 4309 — refer to product images for exact color details
Sizing Guide
Available in Women’s EU 35–39. The Cloud X 3 uses a women’s-specific last for a precise anatomical fit. On sizing runs true to size for most foot types. For training use, a snug fit is recommended for optimal lateral support — if between sizes, size down. For running or all-day wear, sizing true or half up provides additional toe box comfort. Refer to the size chart for precise foot length measurements before ordering.
Why the Cloud X 3 in 3WF30324309?
The Cloud X 3 exists because training is not one thing — and neither are the athletes who do it. The CloudTec® phase system handles the impact of dynamic movement; the Helion™ midsole returns that energy on every push-off; and the women’s-specific fit ensures that precision is built in from the ground up. The 3WF30324309 colorway brings a considered aesthetic to that technical platform — a shoe that earns its place in the rotation on performance, and keeps it on everything else. Train in it. Wear it everywhere.