Blackburn Outpost Top Tube Bag Description: The Blackburn Outpost Top Tube Bag enables easy access to extra storage capacity by providing a storage bag option that sits conveniently on bicycle top tubes via hook-and-loop straps or by using direct mount bolts for total security. Features: Top-tube mounted storage bag with compartments Streamlined aerodynamic shape fits neatly behind stem/steerer stack Mesh smartphone compartment window provides quick access and slight screen visibility Bag attaches to bike via hook-and-loop straps or direct mount top tube bolts Zippered compartment and side zipper pocket provide functional organization Specifications: Pack Type: Top Tube Bag Pack Capacity: 0.5L Mount: Hook & Loop Straps, Direct Mount Waterproof: Water-Resistant Material: Nylon Dimensions: 9.25 x 4.75 x 3" Color: Black Weight: 185g