This must-have insulated jacket crafted from eco-friendly materials offers an excellent warmth-to-weight ratio. The Sirdal jacket offers an excellent warmth-to-weight ratio thanks to its recycled ECOLoft Air SR insulation. Its light weight and relaxed fit maximize your freedom of movement during outdoor activities in unsettled weather. Unlike traditional down fill, the eco-friendly synthetic insulation won't clump when wet. The ripstop outer fabric is built to last. Its water-repellent treatment is PFC-free to protect you while preserving the environment.