In preparation for my trip to Europe this November, I have a new daypack to hold a water bottle and my jacket when indoors. I don't feel comfortable wearing my usual backpacks/daypacks because pickpockets are widely known for slashing pockets to steal valuables, so I'm glad found the strongest, most portable sling bag out there.
This will also come in handy for future beach/pool trips when I need to leave my phone, keys, and wallet by my towel while I'm out in the water.