The Gelert Elen 300 Mummy Sleeping Bag is ideal for two- to three-season use, thanks to the double-layer mono fiber and polyester mix insulation. . . Shell: 190T/70D polyester. Lining: Soft-touch lining with a microfleece foot section. Filling: 300g/m? double layer mono fiber / polyester mix. Pack size: 13.78 x 9.06 in. (35 x 23cm). Ridged hood. Zip baffle. Shoulder baffle. Internal security pocket. Includes compression sack. Measures 86.61 x 29.73 x 17.72 in. (220 x 75 x 45cm). Weight: 55.73 oz. (1.58kg). Season: 2/3. Zip: Left. Max temp: 30.38?F (-0.9?C). Comfort temp: 39.74?F (4.3?C). Limit temp: 0.5?F (-17.5?C). Imported.