Monster jacket is made from "3M Thinsulate Featherless FL700" high-tech insulation. This animal-free alternative down mimics the natural touch, volume, and weight. Individual fibers absorb less than 1% by weight of water which means it dries fast and preserves warmth when its wet. The fabric is breathable, quick-drying, and durable. 100% polyester is constructed in a coil form which makes natural stretch. Also, it is perfect to wear as an outdoor clothing and casual wear because it is less shiny. Manastash's long seller down jacket now has a detachable hood. Multi pockets are designed including water repellent zipper pocket, additional side pockets, and large volume inside pockets.