A slim, rear-mount top tube bag ideal for a repair kit, lube, or a tube, leaving more space for essentials in a frame bag 2" wide and is narrow enough that legs won&';t bump it while pedaling Plastic stiffened side panels prevent side bulging Interior elastic holds a multi-tool Adjustable height seat tube/post attachment Volume: 0.5 liters Best for bikes with standard slope seat tubes, without gussets This product is made with ECOPAK 100% recycled polyester Number of Compartments: 1 Total Volume: 35 Access Style: Zipper Attachment Method: Straps Waterproof: No Weight: 74g. Color: Black