H-D offers two bags that strap onto the luggage rack. One is a nice 'suit case' style with hard sides; the other a bigger soft side bag. The former is especially nice for weekends where one will be staying in a motel/other over night. One packs it with changes of clothes and toiletries for two and, on arrival, simply unsnaps it and goes inside, leaving the tour pac free to house two full face helmets if needed and the trunk to haul back souvenirs. I cannot imagine packing both the trunk and tour pack for a weekend.