M‑Tac Fleece Jacket Berserk PolartecThe outer layer is made of lightweight, breathable nylon fabric with a water repellent finish by the renowned Japanese company Toray. The insulation features the trusted G Loft material from Austria a high quality two component polymer that combines the softness of natural down with the durability of synthetic fiber. The main body of the jacket is made with fabric from the American company Polartec. For this model, we used Polartec 200 Series, known