On Running Cloudmonster 2 “Black Eclipse” — 3ME10121043 | Max-Cushion Performance Running Shoe

The On Running Cloudmonster 2 “Black / Eclipse” (Style Code: 3ME10121043) delivers a refined, performance-focused update to On’s most cushioned running silhouette. Designed in Switzerland, the Cloudmonster 2 is engineered for runners who prioritize comfort, smooth transitions, and consistent energy return across daily training and long-distance runs.

This colorway features a lightweight engineered mesh upper finished in deep Black, paired with subtle Eclipse accents for a sleek, low-profile look suitable for all regions and seasons. The oversized CloudTec® midsole works in combination with Helion™ superfoam to absorb impact while maintaining a responsive, rolling ride. An updated Speedboard® enhances forward propulsion and stability, supporting efficient heel-to-toe movement.

Completed with a durable rubber outsole for dependable road traction, the Cloudmonster 2 balances maximum cushioning with controlled responsiveness—making it ideal for high-mileage training, recovery runs, and comfort-focused everyday wear.

Product Highlights

• Brand: On Running

• Model: Cloudmonster 2

• Style Code: 3ME10121043

• Colorway: Black / Eclipse

• Upper: Engineered mesh for breathability and structured support

• Midsole: CloudTec® cushioning with Helion™ superfoam

• Technology: Speedboard® for forward propulsion

• Outsole: Durable rubber for road traction

• Ride Type: Max cushioning with smooth transitions

• Category: Performance Running / Daily Trainer

A max-cushion running shoe built for comfort, efficiency, and modern performance.