The Fortis Sleeka DPM Salopettes are part of the Snugpak X Fortis Collaboration, a range exclusive to the fishing market. Snugpak is a British company that began as a cottage industry in the 1970s and has grown into a worldwide brand, based in Yorkshire for over thirty years. The garments are built for extremes and are aimed at the seasoned angler. These salopettes use a high-tech Paratex Steelplate outer and Paratex Light inner to keep moisture away from the skin, helping you stay warm, comfortable and dry. The Softie Premier filling reflects and traps heat for reliable warmth, and the garment is rated down to minus 10 degrees centigrade, making it a suitable winter partner for the SJ9 Jacket. - Outer: Paratex Steelplate - Inner: Paratex Light - Filling: Softie Premier - Temperature rating: minus 10 degrees centigrade