Kilpi GUSS-M: Men's Down Jacket for Cold Weather. The Kilpi GUSS-M men's jacket is an ideal solution for winter urban wear and active movement on cold days. The DOWNBLEND filling with a synthetic feather effect provides excellent thermal comfort, while the upper material is lightweight, strong and PFC FREE. Key features: Warm synthetic filling with a down effect. Lightweight and windproof material. Modern design for everyday wear. Environmentally friendly PFC FREE treatment. The Kilpi GUSS-M is a stylish and warm choice for freezing days.