Patagonia W's Nano-Air Pants

Built for frigid stop-start alpine missions or rest days at base camp, these soft, breathable and stretchy insulated bottoms provide all-day warmth and comfort on the coldest days. Fair Trade Certified™ sewn.

100% polyester (87% recycled) plain-weave shell and lining fabric offers generous mechanical stretch, exceptional breathability and abrasion resistance; microtexture creates excellent next-to-skin comfort; features a PFC-free DWR finish (durable water-repellent chemistry that does not contain perfluorinated chemistry)
Revolutionary 60-g FullRange® insulation (40% recycled) warms and stretches and, combined with the shell and lining, supplies outstanding mechanical stretch and unprecedented air permeability (40CFM), allowing excess heat to move away from the body
Stretch fabrics and insulation, articulated patterning and strategically placed, low-profile quilting provide exceptional range of motion for unhindered movement
Low-profile, high-stretch and comfortable waistband pulls on easily, accommodates different layers and works well with a harness or pack hip belt
Two low-profile drop-in front pockets sit comfortably under a harness
Tapered leg and wide-wrap, high-stretch cuffs pull up to sit comfortably on leg or over alpine boots
Fair Trade Certified™ sewn