I want my hands to be free so I can navigate and not have to struggle on cobblestone or stairs. But on the other hand I know I’m going to buy a lot of stuff throughout my trip. I’m planning on bringing like 5 days worth of clothes and just washing them. I’m 5’7 female and I am leaning toward 80L but ChatGPT says 65L max. The internet also is giving me conflicting information. So I wanted to ask people who’ve attempted a similar trip what their experiences were with their backpacks?