The Perfect Travel Mate For Any Journey. If You’re A Bikepacker, You Won’t Want To Miss This. Toploader Is A Large Capacity Top Tube Mounted Bag Giving Bikepackers Quick And Easy Access To Energy Bars, Phone, Wallet, Tools Or Any Small Essential Gear They Need Close At Hand. Capacity: 0.75l/45ci. Fits Top Tube Diameter 35-45mm. Includes Integrated Rain Cover.