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Few pieces of gear strike the same balance of protection, breathability, and weight savings—yet the humble windshell jacket remains one of the most overlooked. These minimalist jackets are a staple for those prioritising versatility and efficiency—a featherlight shell that can integrate into any layering system.

From active sheet insulation that responds to your output to loose fill insulation that mimics the structure of down, we use a variety of types of PrimaLoft® synthetic insulation in our gear. Each one has its unique benefits, tailored to particular conditions and activities. So how do we select which one to use in each product? Discover how these PrimaLoft® insulations work to provide you wi …

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 the garments in the Xenair range have body mapped Primaloft Gold Active+ Insulation in two weights, from the 40g per square metre mapped with …