This is a Daiwa Mini Cool GU1250. The insulation is made of urethane foam, which has 1.5 times the cooling power of styrofoam. Comes with a shoulder strap. It's unused, but has been stored at home by a private individual, so it's for those who don't mind minor details. It will be shipped via宅配便 (takkyubin - a Japanese parcel delivery service).