The ED line utilizes CAMP’s best fabrics, highest-quality down insulation and maximum quality construction to bring you the very best combination of warmth, weight, and packability. The Araneum fabric shell, combined with premium grade white goose down, offers warm, dry insulation. The tight-fitting cut reduces the packed size while also maximizing heat retention. Ideal for the adventurer who likes to move light and fast. Come with three different fill weights: 150, 300, and 500.