The three-season bag is filled with synthetic insulation and has a comfort level of 0o. It is heavier and larger than more technical products like mummy-shaped bags, but offers superior room and comfort levels. Oval-shaped sleeping bag for ultra comfort Three season performance Hood cord adjuster Double layer 350g/m2 synthetic fill Brushed polyester lining Plush polyester shell Comfort rating: Comfort 0o, Limit -5o, Extreme -22o Square carry bag included Left-sided zip with wind baffle Max user height (cm): 185 (approx 6ft) Product Dims (L x W - cm): 215 x 107.5 Carrybag Dims (L x W x D - cm): 42 x 27 x 27 Weight: 2.7kg