I can travel for at least a week (forever if I do laundry) in a warmish climate with the contents of a fisherman's vest. The pockets are mainly in front, which makes life simpler. There is a big poacher pocket at the back that only takes soft stuff so that's where the clothes go. Passport, meds, documents, phone and charger in front. Anything else goes in the jacket that I wear over the vest. I can take it off without risking anything important.