This is an original compression pouch designed with the airport letter codes of ANA's domestic flight destinations. Simply put in your clothes and other items and zip it up to compress them. This is a great item for easily making bulky travel luggage like clothes and towels compact. It helps you pack your luggage compactly, making it a great companion for packing. [M size: Approximately 10 T-shirts can be stored, L size: Approximately 16 T-shirts can be stored] *This is just a guide, as it varies depending on the item. *The destination letters in this design are based on information as of August 2023. Please note that there may be changes. It will be shipped via Click Post. If you would like a different shipping method, please contact us before purchasing. Thank you.