A minimalist down vest providing a high level of core warmth for very little weight, the Cerium LT performs as a mid-layer or standalone in cool, dry conditions. Premium 850 fill down is resilient and warm, the Arato™ 10 shell provides lightweight durability, and Down Composite Mapping™ strategically places Coreloft™ synthetic insulation in moisture-prone areas. The trim fit layers easily under a shell, and the sewn-through construction further reduces weight and increases packability. Highly efficient natural insulation that compacts well and offers excellent warmth to weight. Versatile high-performance designs for diverse activities and conditions. High performance, minimalist design that is durable for its weight. Streamlined, minimalist and lightweight technical down insulation. High warmth to weight ratio.