Built to last and designed to carry a massive amount of gear, the Local Trunk Rack Top Bag offers all of the features we need to make this the last rack bag we may ever need. The zip-open lid is a pocket itself, and this bag's main party trick is that the outboard pockets unzip and unfold to essentially double their apparent volume into a wide pair of vertical chambers. That means this innocent-looking trunk bag whips out the devilish deception of being able to carry big books, a laptop, and all sorts of other stuff we find and need to haul home. It is designed with 210D ripstop polyester for durability and features not only a removable shoulder strap but also compatibility with Blackburn's theft-deterring Interlock racks.