This is a Snoopy drawstring-type insulated bag (for both cold and heat retention). The inside is made of a cold-retaining material for insulation. Size: Height: Approximately 26cm Width: Approximately 18cm Depth: Approximately 15cm Instead of a zipper, it's a drawstring type that tightens with a string, so the shape is very cute when cinched. There's a hook on the handle, so you can gather it up, making it easy to carry. The inside is made of sturdy cold-retaining material, and there's also a mesh pocket at the top. I think you can use it widely for picnics, outings, work, and school. It's an insulated bag that looks cute just by having it, and it'll probably lift your spirits!