The Rummy is a 1,600 cubic inch weatherproof messenger bag with a roll top main compartment which can be used in either the "roll top" mode, or in the traditional "flap down" configuration. It features quick-access outboard pockets, internal zippered pockets, custom aluminum strap hardware, and detachable cross-chest stabilizer.Our messenger bags are made from 1000D Cordura on the shell with a Riptop Nylon Liner that has a fully waterproof TPU backing. Duraflex plastic hardware and YKK zippers round out this versatile daily-carry messenger bag.