The Rab Xenair 3/4 Pants are designed for optimal warmth and breathability, making them perfect for layering under shell pants in cold conditions. Crafted from lightweight Pertex® Quantum Air fabric, they provide insulation while regulating temperature during various activities like ski touring and mountaineering. The PrimaLoft® Gold Insulation Active+ is strategically zoned for warmth and mobility, featuring quilting for added freedom of movement. Articulated knees and stretch fleece panels enhance comfort, while the adjustable waistband ensures a secure fit. Built with sustainability in mind, these pants feature a 100% recycled liner and insulation, finished with a fluorocarbon-free DWR treatment, making them ideal for challenging mountain missions.