Incombustible carbon fiber winter suit. Made of pre-oxidized PAN with fleece insulation. Self-extinguishing, LOI≥45%. Continuous 600°C, peak 1300°C. Meets GB 8965.1-2020. Outer layer reflects heat and forms barrier; inner fleece traps warmth in severe cold. Articulated joints and Velcro closures block sparks and molten splash. Ideal for firefighting, foundry, welding, petrochemical, polar work. Washable, durable, asbestos-free. Lightweight and flexible.