Bug Out Bag
Knife
Knives have multiple uses. Anywhere from cutting things to stabbing things. A knife will make everything easier.
Water
It's pretty self explanatory. You can only live 3 days without it. Bring some bottles and maybe a filter as well.
Food
Same as water you can't live without it. You can live up to 3 weeks without food but after a few days you'll start to go insane and lose your concentration.
Fire
Whether for warmth or cooking fire can keep you alive. Bring water proof matches and other necessities for starting fires
Bow and Arrows
Bows will be great for killing animals for food. They can also be used as a source of protection. One arrow can last for years
Paracord
Para cord can be used for just about everything. make a hammock or make a trap.
First Aid
Even tiny cuts can kill you from infection. Clean them up and avoid your death or sickness
Light
Having a light can help you a lot. You may be walking in the night and fall off a cliff. I suggest having a light to avoid that
Radio
Have some form of communication between you and others. Preferably hand cranked or solar.
Tarp
You can use tarps to catch rainwater and shelters