"An astonishingly light bag for the warmth" Best buy sleeping bag, TGO magazine April 2004. Quantum bags are designed to be the lightest for todays weight conscious adventurers. Use of Pertex® Quantum fabric and 750+ fill power down ensures the optimum warmth to weight ratio, in efficient designs to meet the needs of backpackers, Alpine climbers, ski and cycle tourers. The Quantum 400, 600 and 800 are narrow cut bags optimising warmth for minimum weight and include full length side zips with protective baffles on both the zip and round the shoulder. All Quantum bags use Pertex Quantum® fabric on inner and outer. All Quantum bags are filled with 96% pure white goose down with a fill power of 750+EU/850+US. Each bag comes with a stuff sac and cotton storage bag. Weight 900g Comfort -5°C Dimensions 215 x 75cm Pack Size 15 x 25cm