Under the leather was a regular old backpack. Medium height quick detach standard sissy bar with a motherwell luggage rack on the fender. Got creative with bungee cords and was able to carry a tent, sleeping bag, lawn chair, 3 days worth of clothes, hygiene supplies, 1 extra pair of shoes, chaps and my jacket. Took this setup on 2 trips to the tune of about 2k miles total.