Marmot Helium MemBrain

Regular Long Weight 2 lb 5 oz / 1050 g 2 lb 9 oz / 1162 g Fill Weight 1 lb 3.5 oz / 552 g 1 lb 5.5 oz / 609 g Temperature Rating 15 F / -9.4 C 15 F / -9.4 C EN Comfort 22.5 F / -3.6 C 22.5 F / -3.6 C EN Lower Limit 13.8 F / -10.1 C 13.8 F / -10.1 C EN Extreme -19.8 F / -28.8 C -19.8 F / -28.8 C Fill 850 Fill-Power Down 850 Fill-Power Down Shape Mummy Mummy Max User Height 6 ft 0 in / 180 cm 6 ft 6 in / 200 cm Hip Girth 58 in / 147 cm 58 in / 147 cm Foot Girth 40 in / 101 cm 40 in / 101 cm