Purchased at a Montbell store in April last year and used twice. Please refer to the image for compatible sizes. List price: ¥2,750 Manufacturer's description A convenient item for further compressing Montbell's compact sleeping bags, allowing them to be stored in backpacks and other items with less space. Specifications [Material] 30-denier polyester ripstop [urethane coating] [Weight] 34g [Color] Gray (GY) [Applicable storage size] Φ11 x 18cm (minimum) Φ14 x 36cm (maximum)