This is the JAM'S GOLD ROD Seat Bag JGB-1012 (Black). The actual size is 15cm (height) x 30cm (width) x 20cm (depth). (Please allow for slight variations) It doesn't look like a typical seat bag, which is a good thing. I think it would suit retro bikes, American bikes, and Cub-type bikes. I really liked the look of it, but I'm selling it because it couldn't fit a full-face helmet shield for nighttime use. There are no noticeable signs of use. All accessories are included. Thank you. <Excerpt from the manufacturer's product page> A cooler bag that can be attached to various places such as tandem seats and carriers. The military-inspired design makes it easy to use on any type of vehicle. It can be easily removed with Velcro and quickly converted into a shoulder bag, making it easy to carry around during breaks on a touring trip. It has a cooling function, so you can shop with peace of mind when you're out and about. ・Product dimensions W28 x 16π 5.6L