NylonImportedNote: CW295 is medium size, unfolded size: 74.8 L*28.3 W/ 190*72 cm, CWM400 is large size, unfolded size: 78.74 L*31.50 W/ 200*80 cm. you can choose a more suitable size for your styleSUFFICIENT DOWN FILLING - Adopting a sufficient amount of 295g duck down to fill the whole sleeping bag, the high filling capacity holds more still warm air and brings you a thick wrapping feeling. The naturally grown duck down has no special odor, and the 650 fill power is higher than normal duck down to have a high fluffy feeling, bringing you a comfortable experience like clouds. Tap the sleeping bag before first use to make the down fluffierINDIVIDUAL DOWNDESIGN - to ensure that your sleeping bag is independent of each channel, the down will not run around, so that your body in all directions to get a warm touch. Recommended use temperature: comfortable (42.8 / 51.8 ) /(32 / 42.8 ). Ever...