CF Design Boat Box 11 Trout Dark Gray XX-LargeThe most versatile boat box which comes with 11 System Foams in all three sizes (Large Medium Small) as well as 20 large compartments on one side. Each compartment is 28mm 1. 1 inch depth which can holds from standard to large flies for sufficient amounts of flies to be carried. Each System Foam can be detached and moved to our other devices such as System Case and System Fly Patch, depends on the scene. Water proof and dust proof sealed with gasket