The MindShift Gear Lens Switch Case is an accessory storage compartment that slides onto the belt rail of the rotation180deg. Pro Backpack. The lens case is made of ripstop fabric and it features a 3" drop-down extension to accommodate lenses up to 10" long. This case comes with a fitted rain cover that conveniently stows into a pocket at the bottom of the case. The Switch Case can be configured as a single bag, or divided to hold two items. It will hold a wide array of camera equipment.