As a man, I say just get a small backpack. I have little a military-style one. It’s nice.

Holds my wallet, keys, hand sanitizer, napkins, a bottle of water, mints/gum, lotion, sunscreen, lip balm, pen, pencil, deodorant/cologne, comb, lighter, knife, and gun. Everything I need to survive the day. And a tracker tag of course in case it gets lost.