We used earth-friendly PrimaLoft® Black Eco Insulation when crafting this coat. Made of post consumer recycled material, it's a synthetic insulation that offers warmth, softness, and lightweight comfort without harming the environment. Never thought something like a recycled water bottle could keep you warm? Think again. This coat also packs conveniently into its own bag and cinches shut. Throw it in your vehicle or canvas tote for grab-and-go warmth wherever sudden chills lurk. It is water resistant, making those seasonal surprise sprinkles a little less surprising.