Topeak Fastfuel Drybag X Top Tube Bike BagThe Topeak FastFuel Drybag X is a top-tube mounted bag that's designed and shaped to provide easy access while eliminating leg contact. Also, it features a waterproof outer shell and is perfect for storing essential travelling gear, tools, energy bars and snacks. It provides a sleek and streamlined storage option that's more efficient and more comfortable to use than other options, And, it provides quick and convenient access to your journey essentials, small items, house keys and your smart phone. Features: Material: TPU Compartments: 1 main Capacity: 1 L / 60 ci Bag Attachment: Adjustable nylon straps Top Tube Diameter: Fits 38 - 170 mm Head Tube Diameter: Fits: 38 - 52 mm Size: 22.5 x 9.2 x 6 cm / 8.9" x 3.6" x 2.4" Bag Attachment: Adjustable nylon straps Weight: 119 g / 4.20 ozBuy Topeak Accessories from Chain Reaction Cycles, the World's Largest Online Bike Store.