I only spread it out indoors once, so it's almost new. Product Details: Envelope type with high versatility, in Aurora style This versatile envelope-type sleeping bag can be opened with an L-shaped zipper to be used as a comforter, or you can put a sleeping bag inside during cold seasons. This convenient envelope type is made with NANGA's standard AURORA-TEX. The down fill is 800g, suitable for use mainly in the fall and winter seasons. If you put a sleeping bag for spring and summer inside, the insulation will be further enhanced. It can be used alone, with a sleeping bag, or as a cushion or comforter, etc., for various purposes. ■ Comfortable use temperature (NANGA standard) 0℃ ■ Regular (Height 166cm - 178cm) Fabric: Outer fabric: 40D AURORA-TEX® Lining: 40D nylon taffeta Internal structure: Single quilt construction Fill power: Re:CYCLE DOWN (650FP) Down fill: 800g Colors: BLK (Black), COYOTE (Coyote), KHA (Khaki), IVY×NVY (Ivory x Navy) Storage size: φ21 x 41cm Total weight: 1700g Comfortable use temperature (NANGA standard): 0℃ Mesh bag included Type: Envelope type