The Patagonia Down Sweater - Women's is a windproof and insulated jacket for heading out into the cold. The trails are still open, so continue on through the fall and winter, wrapped in 800 fill power 100% Responsible Down Standard down. It's lightweight and provides plenty of heat, and can be worn as a standalone or layered under a shell. The NetPlus recycled nylon ripstop shell is responsibly made and windproof, so you can take on hikes through blustry weather.