The Arc’teryx Cerium SV hoodie deals in extremes — outstanding warmth, almost no weight. The brand’s pinnacle alpine down piece and the warmest, most durable in the Cerium line, it leans on high‑loft 1000‑fill goose down for serious cold, with Coreloft™ stepping in where moisture tries its luck. The 20D Pertex® Diamond Fuse shell keeps things light and windproof, and the insulated Storm Hood™ helps keep your view of the mountain clear. Body: Pertex® Diamond Fuse 100% Nylon Ripstop Down Insulation: 1000 fill Grey Goose Down Lining: 10D x 20D Ripstop - 100% Nylon Synthetic Insulation: Coreloft™ Silver Insulation Moisture & Wind Resistant Insulated, Helmet Compatible Storm Hood™ Adjustable Drawcord Hem Chest Pocket & Hand Pockets Compressible & Packable Style Code: X000010558-002291