Men's sleeping bag with European duck down fill. Ascent series bags are made with relatively light, but very durable fabrics: they are suitable for active use. Ascent bags are not minimalistically narrow, but rather of the "Rab wide mummy" shape: this enhances comfort, especially for restless sleepers. The Ascent 900 lies in the class of insulation that makes it difficult for EN standard tests to reliably tell about the differences between bags. For this reason, Rab has published the limit and comfort temperatures, but not the extreme rating. You can rest assured the extreme rating is somewhere in the -40ºC range. - Men's regular size: - Max. user length 185 cm (bag length 215 cm) - Circumference at shoulders 160 cm - Circumference at hips 134 cm - Circumference at foot box 108 cm - Surface fabric: 30 denier Pertex Quantum, recycled nylon, 50g/m² - Liner: 20 denier recycled nylon, 38g/m² - Zippered internal pocket - 3/4 length zipper - Snag-inhibiting webbing stripe next to zipper -