Arc'teryx Ceres SV Parka Men's Nylon CERES SV PARKA - Combining 850 fill down insulation with a GORE WINDSTOPPER shell, the Ceres SV is built for severe cold. ARC'ESSENTIALS - Versatile high performance designs for diverse activities and conditions. DOWN - Highly efficient natural insulation that compacts well and offers excellent warmth to weight. SEVERE WEATHER - Most durable materials and weather protection, for prolonged exposure to severe conditions. WINDPROOF MATERIAL - Impervious to wind and offers significant weather resistance with lighter weight protection.