The Rab Xenair Alpine Light Jacket is a great choice for high output activity in fluctuating conditions. With a breathable lining and PrimaLoft Gold Active+ insulation, it expertly deals with changes in energy and temperature without forcing you to remove layers. Lightweight materials and an articulated fit make the Xenair Alpine Light perfect for year round use just as comfortable as a technical outer layer on summer evening hikes as a warm, hardworking midlayer while shredding in winter.