This is a zippered pouch made with a thermal insulation sheet. It's large enough to hold a slightly larger lunch, snacks, or vegetable juice. You can use it as is, inside your bag. This listing is for the pouch only. Outer fabric: Liberty Rose Ellen Tana Lawn fabric used. Medium-weight interfacing used. Inner fabric: 4-layer aluminum thermal insulation sheet with mesh, making it tear-resistant and durable. It has a gusset that can easily fit a container or rice balls. It folds up small for convenience. It can be washed, but we recommend putting it in a net or washing it gently by hand. Ironing and using a dryer are not recommended. Size: Uses a 20cm zipper Height: Approximately 15cm (to the bottom) Width: Approximately 21cm Gusset: Approximately 6cm Bottom: Approximately 13cm x cm There are no handles or pockets. As this is handmade, please understand that there may be slight imperfections such as warping or uneven stitching. The color may differ slightly from the photos. It will be folded for packaging. Thank you. Liberty Tana Lawn Lunch bag Cooler bag Ice ring Neck cooler