The Helium 600 is a sleeping bag designed by Mountain Equipment to offer you lightweight insulation from spring to autumn. Although this sleeping bag is light, it remains warm and insulating. Indeed, the Helium 600 is filled with duck down, providing excellent insulation. Additionally, the Helium fabric is dense, offering a high level of wind resistance, and thus minimal heat loss. Moreover, the slanted box-wall baffles not only reduce the weight of the sleeping bag but also ensure an even distribution of the down for effective insulation. Finally, the Bulls Eye ™ technology located in the foot box area limits the migration of down to the bottom, always with a focus on lightness and compressibility. Materials: 100% polyamide The HELIUM ™ 20 outer shell is very light and highly breathable Pure duck down 90-10 with a minimum fill power of 700 The alpine fit maximizes thermal efficiency Slanted baffles throughout Mid-level side seams 5-baffle anatomically shaped hood 4 anatomically shaped compartments with offset foot box Full-length Gemini ™ zip baffles and integrated collar with Lode Lock ™ closure Comes with a waterproof stuff sack and storage cube Comfort temperature: -5°C Limit temperature: -11°C Extreme temperature: -31°C Fill power: 700 cuin Weight: 1,030 g Mountain Equipment Helium 600 - Sleeping bag - Men's