On
Sizes are the brand’s own labels, mostly Italian (IT). See size guide for UK, US & EU conversions.
The On 'Cloudmonster 1' sneaker sets new standards of cushioning through a maximalist silhouette. The upper in breathable technical mesh is enriched by the contrasting maxi side logo and the iconic detail of the Swiss flag on the lacing. The impressive structured sole features large hexagonal notches that ensure optimal impact absorption and dynamic thrust. The design is completed with an enveloping fit and heat-sealed finishes that enhance the chromatic purity of the model. An essential element that transforms daily performance into an experience of superior comfort. SUSTAINABLE: Product made from recycled polyester. - Helion foam" that absorbs impacts - Technical mesh upper - Maxi side logo - Swiss flag detail - Chunky sole with CloudTec® cushioning system - Lace-up closure
| EU | UK | US | Foot length |
|---|---|---|---|
| 35 | 2.5 | 5 | 22.5 |
| 36 | 3.5 | 6 | 23.0 |
| 37 | 4 | 6.5 | 23.5 |
| 38 | 5 | 7.5 | 24.0 |
| 39 | 6 | 8.5 | 24.5 |
| 40 | 6.5 | 9 | 25.0 |
| 41 | 7.5 | 10 | 25.5 |
| 42 | 8 | 10.5 | 26.0 |
The size shown is the manufacturer's own label. The table below is general guidance for converting between systems, not measurements of this garment — brands vary, and the same number means a different size on Italian and Spanish labels. The reliable comparison is the waist in cm against something you already own that fits. See full size guide →
