An emergency survival kit should include the following essentials:
1. **Water and Purification**: At least one gallon of water per person per day for at least three days, and water purification tablets or a portable filter.
2. **Food**: Non-perishable food items such as canned goods, energy bars, and dried fruits for at least three days.
3. **Shelter and Warmth**: Emergency blankets, a tent or tarp, and hand warmers.
4. **Clothing**: Extra clothing, including socks, underwear, and a raincoat or poncho.
5. **First Aid Kit**: Bandages, antiseptic wipes, adhesive tape, pain relievers, and any personal medications.
6. **Tools and Supplies**: A multi-tool, duct tape, a flashlight with extra batteries, a whistle, and a manual can opener.
7. **Communication**: A battery-powered or hand-crank radio, and a fully charged power bank for mobile devices.
8. **Personal Hygiene**: Sanitation supplies such as moist towelettes, garbage bags, and plastic ties.
9. **Important Documents**: Copies of personal identification, insurance policies, and emergency contact information in a waterproof container.
10. **Cash**: Small denominations of cash in case electronic transactions are unavailable.
11. **Maps**: Local maps for navigation if GPS is unavailable.
12. **Fire-making Supplies**: Waterproof matches, lighters, and fire starters.
13. **Lighting**: Glow sticks or candles for additional light sources.
14. **Personal Items**: Items specific to individual needs, such as glasses, contact lenses, or baby supplies.
15. **Entertainment**: Books, playing cards, or games to pass the time.
Regularly check and update the kit to ensure all items are in working order and not expired.