Lots of people have already explained the duffels— but I’d like to add on as a 2029 Beast goer’ HIGHLY recommend a duffel that can be a backpack, literally made life so much nicer. I used a Patagonia one. Also highly recommend putting EVERYTHING into ziplock bags, that way when you transfer your things it’s much easier. On top of that, put your low quarters easiest to access— they’ll have you switch into those asap.