So you have to flee and you have to flee fast. In the worst case, you will need to abandon all your possessions, but with some forethought you may be able to avoid going out emptyhanded. The above pink case is simply a mistake. You want to keep a phone in case the phones keep working for awhile. You probably don’t need sunglasses. Think about what’s essential.
You need your hands free. A few superheroes may be able to do without hands, but the rest of us will need something to hold the gun or axe.
I recommend a lightweight backpack. Throw in prescription glasses or contacts, necessary daily medications, some nuts and calorie-dense snacks, water, a small but durable and bright flashlight (Pay up — you can’t be desperately looting Walgreens to find DD batteries!), extra thick socks, weapons, and a good, small paperback. An eyepencil and lipstick won’t add too many ounces. Put in as much water as you can comfortably carry and secure your weapons. Wear this backpack at all times.
Obviously this is a short-term escape plan only, not likely to carry you for more than a day. But that’s a day to find refuge. Keep it light. You may have to run far and fast. You don’t want to have to stop.