Thank you for viewing. This is a Goldwin seat bag, GSM17606. It's in good condition and clean. I used it for two touring trips. It seems to be discontinued now. It comes with a rain cover, shoulder belt, and setting belts. The capacity can be changed from approximately 48-78L. Size (approx.) Length: 33cm Width: 48-68cm Height: 35cm I remember the purchase price was around 20,000 yen. Thank you.