Designed for hybridized warmth and maximum breathability while moving in cold weather, this jacket has 100% recycled polyester PlumaFill insulation in the front panels and arms for warmth; the panels in back and under the arms allow heat dumping during high output. The main body fabric is 100% polyester (87% recycled) and is highly breathable, with a PFC-free DWR finish (durable water repellent coating that does not contain perfluorinated chemicals) for additional protection while you’re on the move. Fair Trade Certified™ sewn.