As light and compressible as functionally possible, the Cerium SL down vest weighs a scant 125g (4.4 oz) but delivers exceptional warmth for its weight. The 850 fill power goose downs warmth to weight ratio is outstanding, and the tear-resistant, wind resistant Arato 7 nylon shell is exceedingly lightweight. It primarily functions as a mid layer, but its efficient warmth and packability makes it an effective standalone for rest breaks, evenings at camp, or emergency bivvies.

• CERIUM Streamlined, minimalist and lightweight technical down insulation
• High warmth to weight ratio
• SUPERLIGHT Superlight materials and design, emphasizing light weight and packability over durablity
• ESSENTIALS Versatile high performance designs for diverse activities and conditions
• DOWN INSULATION Highly efficient natural insulation that compacts well and offers excellent warmth to weight.