This is an Anpanman cooler bag distributed as a novelty item by JA Kyosai. The size is approximately 28cm wide x 21cm high (excluding handles) x 13cm deep. The material is polyester on the outside and aluminum vapor deposition on the inside, and it also has an inner mesh pocket. I took it out of the bag to take photos, but it's a new, unused item. Shipping is planned via Rakuraku Mercari Bin (Nekopos).