From late fall hikes to early spring mountaineering missions, the Rab Men's Cirrus Flex 2.0 Hoody offers versatile, packable warmth for changing conditions. Employing Primaloft Silver Luxe recycled synthetic insulation, which retains its insulating properties even when wet, the Cirrus Flex handles damp climates with ease. Stretchy fleece panels on either side set this puffy apart from other insulating layers, increasing range of motion and leveling up breathability—a welcome feature when you're generating body heat during more strenuous adventures.