Mountain Equipment Switch Insulated Jacket

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The Mountain Equipment Switch Insulated Jacket combines insulation, breathability, and flexibility for high-output mountain activities.

Mountain Equipment says: 

A hybrid insulated mid layer that is ideally suited to those needing to move fast over technical ground.

With its exceptional moisture transfer and high warmth-to-weight ratio Octayarn Warp-knit core makes the Switch a jacket you can leave on throughout the most strenuous stop/ start mountain days. Allied to proven Pontetorto® Tecnostretch fleece panels, the Switch Jacket is an essential piece for active layering.

Our Verdict

The Mountain Equipment Switch Insulated Jacket is a thoughtfully designed hybrid mid-layer that excels in active mountain pursuits. It seamlessly combines insulation, breathability, and flexibility, making it ideal for those engaging in high-output activities.

At the heart of the Switch jacket is the innovative Octayarn Warp-knit core, which provides an impressive warmth-to-weight ratio and exceptional moisture transfer. This technology allows you to maintain the coat during stop-start activities without overheating, a crucial feature for mountaineering and alpine climbing.

The jacket’s versatility is enhanced by strategically placed Pontetorto® Tecnostretch fleece panels on the arms, shoulders, and sides. These panels offer excellent mobility and breathability, ensuring unrestricted movement during technical manoeuvres.

The outer layer, constructed from lightweight 20D RS Nylon, provides wind resistance and a mechanical stretch for added comfort. The FC-free DWR treatment offers light weather protection without harmful chemicals.

Practical features abound, including two zipped hand warmer pockets, two Napoleon chest pockets, and the ability to pack into its pocket with twin carabiner loops for easy carrying. The elastane-bound hem and double-layer collar add to the overall comfort and fit.

– Reviewed by Ultralight Outdoor Gear

Features

• Lightweight 20D RS Nylon outer fabric is wind resistant, with mechanical stretch and FC free DWR
• Octayarn Warp-knit lining for exceptional insulation, breathability and comfort
• bluesign® approved Pontetorto® Tecnostretch 187 fleece [arms, shoulders and side panels]
• Flatlocked seams for next-to-skin comfort
• YKK® centre front zip
• 2 zipped hand warmer pockets and 2 Napoleon chest pockets
• Elastane bound hem and double layer collar
• Packs into hand pocket with twin karabiner carry loops

Specifications

• Small weighs: 271g
• Medium weighs: 287g
• Large weighs: 306g
• XLarge weighs: 316g
• Active fit

Material & Construction

• 100% Polyamide outer; 52% Recycled Polyester,
• 48% Polyester lining
• Inserts: 92% Recycled Polyester, 8% Elastane

Help & advice:

• Synthetic Insulation Explained
• Time-Saver Guide to Choosing a Synthetic Jacket
• Recycled Content in Outdoor Gear
• Why is ‘PFC Free’ Important?
• What is Bluesign?
• All About Synthetic Insulation