60% polyester, 40% post-consumer recycled (PCR) polyester; Eco Series uses PCR polyester fleece material made from recycled soda bottles and packaging containers; soft, breathable and wind-resistant; low-loft construction; lightweight thermal retention; includes an exhale heating system which allows you to inject a quick blast of warm air into your hand without removing your gloves; patented Tec Touch pod on the index finger allows you to use most personal audio devices or cell phones without removing your gloves.