This Mission Workshop messenger bag is the Swiss Army knife of bags. The Mission Workshop VX Messenger Bag AP Series ($250) offers style, durability and functionality in one package. This bag includes their Arkiv closure system, which is made with a 1000d VX Cordura outer layer laminted to a PTFE membrane. Basically this means you get a bag that can withstand harsh elements while keeping your gear dry. The weather proof top can be used in either a roll top configuration or as a traditional flap. On the interior the VX Messenger offers a large zippered pocket that fits laptop computers along with other compartments for your other gear. Because of its durability this could be the last bag you ever need to buy.