Space will be tight in your backpack, so you’ll want everything to be essential. If your clothes require ironing or will get destroyed easily, don’t pack them. I brought a fancy dress around the world with me and not only did I never wear it (because I was a backpacker and nobody was wearing stuff like that) but I felt guilty about throwing it out, so carried it around with me for an entire year! Don’t do this — bring clothes you don’t care about and replace them for cheap on the road.