I purchased this but have never used it. It has been stored at home, so there are some fold creases. Inside, there is aluminum with a cooling effect, and it's a separate type that can be removed. It will be shipped folded. Thank you for your understanding. Purchase price: 1628 yen Size: 400 x 240 x 180 (mm) Capacity: Approximately 15L Weight capacity: Approximately 5kg