The 445's main compartment includes four extra full depth pockets. The single zip top opening has been retained but has also been profiled, so that it is possible for the zip panels to lie behind the inside pockets, so forming the Billingham TukTop. In use the zip can remain open and protected with the main flap. The simple zip path ensures long, trouble-free life. The adjustable Delta shoulder sling comes complete with a leather and neoprene SP15 shoulder pad. An 8-15 Superflex and a Flap are also included.