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 600 Endurance is a narrow cut bag optimising warmth for minimum weight and includes full length side zips with protective baffles on both the zip and round the shoulder. Pertex Quantum® fabric on inner and weather protective Pertex Quantum® Endurance (note - due to the water resistant nature of endurance fabric we strongly recommend you air your bag daily. If this is not possible then we advise you consider the Q600) 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 1180g Comfort -12°C Dimensions 215 x 75cm Pack size 21 x 35cm