This is a frame bag from ORTLIEB's limited black edition series. Unlike the slate (gray) color, it's easier to match with other manufacturers' products and the latest ORTLIEB series. It has been used a few times, so there are some scratches on the parts that touch the frame, but the fabric is not damaged. The zipper is on the left side. It is completely waterproof, so the zipper and fabric are heat-welded without seams. However, there is a cable pass-through hole at the end of the zipper to supply power to smartphones, lights, etc., with an external spare battery. Velcro (female) is attached inside so that an external spare battery can be installed. It's important that the battery doesn't move inside, so I will sell it without removing it. If you purchase Velcro at a 100-yen shop and attach it to the battery itself, it won't shake, and you won't need unnecessary lengths of charging cables. I think it will be useful. Even with a 10000mAh or larger battery, it didn't shake at all. I've tried many bags, including ORTLIEB's top tube wrap-around type, their top-end roll-top type, and bags from other companies, but I think this one is simple and easy to use. I am selling it because my saddle bag is now black/orange, and I want to match the colors. Manufacturer's specifications: H15xW40xD6cm 3L. However, it is recommended that the inner width of the front triangle of the frame be 420mm or more.