This is a large saddlebag from Topeak. It comes with an inner bag and adjustable straps. It was only mounted on a bicycle once for size confirmation, so it's like new. There is no stretching or deterioration of the rubber. The inner bag is unused. Both the bag and the inner bag are approximately 80 cm long. I think it's probably 15L, but the new instruction manual says it's 67 cm long. - Color: Black - Material: Nylon - Features: Adjustable straps Thank you for looking. I've priced it low, so please refrain from asking for a discount.