Santa brought me a Gregory Z55 pack to help be begin backpacking. One of the features of the pack is a "removable top lid". Can someone please explain how this is supposed to work; I can detach is easily enough, so it's removable – but how do you carry it? I imagined that one of the existing pack straps would also detach for use as a shoulder strap of sorts. Or, does it just detach and that's it?
Thanks in advance,
Jeff

