RAB Xenair Range - Intelligent Insulation

Posted by Mark Richardson on Feb 22, 2024

Impressively breathable, adaptable and versatile, Xenair is our synthetic insulation collection for mountain ascents. Intelligently body mapping different densities of insulation and air-permeable fabrics, they respond and regulate your temperature.


All of the garments in the Xenair range have body mapped Primaloft Gold Active+ Insulation in two weights, from the 40g per square metre mapped with 'no insulation' of the Xenair Light Insulated Jacket to the Xenair Alpine Insulated jacket which uses 100g per square metre mapped with 80g in less critical areas. The table below summarises these key factors to help you choose which Xenair is most suitable for you.

Body Mapping Technology

Fabrics are selected according to what you need at that precise location, whether that's more stretch, insulation or breathability. That means more efficient gear for you, your activity and the conditions.


Primaloft Gold Active+ Insulation

Efficient synthetic insulation that provides just the right amount of warmth, breathability, and stretch to keep you moving fast and free, perfectly adapted to stop and start activities.


Pertex Quantum Air

An open woven structure increases the air permeability of this highly breathable yet wind resistant fabric, perfectly suited to intense mountain pursuits.

Xenair Insulated Vest

Expertly adapting to changes in intensity, pace, and temperature, this lightweight synthetic insulated vest offers the warmth and breathability of our iconic Xenair range, without the bulk of sleeves. Ideal as a midlayer or a versatile outer, it’s compact and built to respond to your output whether you’re questing up a frozen waterfall or transitioning from skin to ski. It features an improved, highly breathable lining which moves sweat through the system more quickly than ever before. Combined with body-mapped, dual weight insulation designed to maintain warmth only where you need it, it keeps you comfortable for longer and removes the need to change layers in mixed conditions.

From fast-moving hikes to backcountry skiing, the Xenair Vest is an adaptable do-it-all layer that will keep you moving on big mountain days.

Xenair Alpine Light Insulated Jacket

When conditions are mixed and activity levels fluctuate, this lightweight synthetic insulated jacket delivers the ultimate balance of warmth and breathability to keep you comfortable whatever your day throws at you. Filled with dual weight PrimaLoft® Gold Active+ insulation which is lighter in hot spots to help regulate your temperature, it’s a versatile jacket which can be used as a technical outer on fast summer hikes or a warm, hardworking midlayer in cooler conditions. Now featuring a new, even more breathable lining, the Xenair Alpine Light expertly deals with changes in energy and temperature without you needing to remove layers.

Xenair Light Insulated Jacket

Versatile, breathable, and packable, this is an ultralight version of our definitive synthetic insulation for high energy ascents. Wear as a technical outer for fair-weather objectives or a warm midlayer when the mercury drops, it features a new, improved, even more breathable lining, designed to regulate your temperature and keep you comfortable for longer. Adapting with ease to changeable temperatures and energy levels, it is active insulation crafted to be kept on all day, however fast you’re moving and in any weather.

The Xenair Light is a versatile jacket for any demanding mountain activity, from climbing and mountaineering to fast hiking and scrambling.

Xenair Alpine Insulated Jacket

Warm, breathable, and adaptable synthetic insulated hoody, built for high energy ascents in cold and varied conditions. Body mapped, dual weight insulation and breathable fabrics allow you to push for the summit and keep warm at the top.

On this page we look at Rab's Xenair range of jackets and vests which are designed for active outdoor users explaining the function and features of the garments and pointing out the differences between them.