









Breathable hybrid jacket - Men -
The Switch Pro M Jacket Mustard is a hybrid men's jacket from the brand Mountain Equipment, designed for enthusiasts of mountaineering, hiking and ski touring.
This jacket stands out for its lightweight and technical construction, combining a Nylon RS 20D outer fabric with an innovative lining made of Octayarn. This unique material, composed of hollow and multi-grooved fibres, offers excellent thermal insulation while promoting moisture wicking, ensuring optimal comfort during exertion. Its water-repellent finish provides effective protection against light weather.
Designed for performance, it features brushed stretch fleece inserts under the armpits, on the top of the hood and on the side panels, providing enhanced breathability and freedom of movement. The elasticated hood, cuffs and semi-elasticated hem guarantee a perfect fit. Practical, it includes two zipped hand-warmer pockets, a chest pocket and can be packed into an integrated pocket with two carabiner transport loops.
Its manufacture using recycled materials helps reduce water consumption and CO2 emissions. The Switch Pro M Jacket Mustard is the ideal companion to face your mountain adventures with comfort and protection.
Get ready to push your limits with complete lightness, whatever the weather.



- Breathable and hybrid jacket
- Flat seams
- Elasticated hood
- Central YKK® front zipper
- 2 zipped hand-warmer pockets
- 1 chest pocket
- Elasticated cuffs
- Semi-elasticated hem
- Packs into a pocket, two transport loops for carabiner clips
Composition :
- Lightweight outer fabric in 20D Nylon RS
- Octayarn lining
- Brushed stretch fleece inserts 162 g/m² (underarms, top of hood and side panels)
- Water-repellent finish
| Octayarn | Under the microscope, Octayarn is composed of hollow, multi-toothed fibres, each featuring eight prominent tooth-shaped “teeth”. This complex 3D structure increases surface area and traps warm air, thereby improving thermal insulation and moisture wicking, while reducing overall weight. Octayarn offers the thickness of an 80-denier fibre at half the weight and significantly reduced volume. |