The Brompton Roll Top Bag is a smaller front bag which is compatible with Bromptons with all handlebar types. It has a 9 Liter capacity and measures 13.8" wide x 8.5" high x 4.1" deep internally. It's just enough space to fit a compact laptop. There is a single internal zip pocket for smaller items, too. The waxed canvas material is classic looking and water resistant, and the bag comes with a high-vis rain cover for added water resistance. The roll-top opening accommodates a wider range of stowed items than a zippered closure would; it closes with a leather belt and brass hardware. Lastly, the bag has a quick-adjusting shoulder strap for easy carrying off the bike.