Oktoberfest outfits are totally optional, but highly encouraged. Literally everyone at the festival gets involved in the costume game as it’s all part of the fun. For girls, dirndls and a traditional short-sleeved trachtenblusen (blouse) is the normal get up, plus some kind of hair braid for extra authenticity. For boys, it’s all about the lederhosen and checkered shirts. If you’re prepared, we’d suggest organising your outfits in advance of your trip (all hail the internet), but you’ll also be able to buy costumes once in Munich - these may just come with a higher price tag.