This is an insulated case for frozen pouch drinks. Adding a cold pack will keep them colder for longer. The inside is made of aluminum foil. You can drink from the spout through the hole between the lid and the body of the case, so you can drink while the drink is still in the case. Size: Length: 12.5cm Width: 13cm Please allow for some margin of error. For my own use, I made a large size for Aquarius and a small size for Coolish. This is a handmade item, so please understand that there may be distortions, wrinkles, and imperfections in the stitching. Bundle discount available, please inquire in the comments. 1 item: As is 2 items: ¥100 off 3 items: ¥200 off Each additional item: -¥100 The fabric has been pre-washed. Please do not iron or wash.