A 72-hour kit is a bag packed with everything you need to take care of yourself for three days if you have to leave your home on short notice. That is it. Not a survival bunker in a backpack. Not a military loadout. Just the basics that keep you fed, hydrated, warm, and connected for 72 hours.
The problem is that most checklists online include 80 items and cost $500. That leads to analysis paralysis, which leads to no kit at all. Here is a simpler approach.
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Why 72 Hours?
Seventy-two hours is the standard because that is roughly how long it takes for organized help to reach most areas after a regional disruption. FEMA, the Red Cross, and the National Guard are designed for sustained response, not immediate rescue. Flooding, wildfire evacuation, extended power outage, whatever it is, those first three days are yours to manage (Ready.gov).
A friend called me at 11 PM once because her building had a gas leak and she had to leave immediately. She grabbed her kids, her phone, and nothing else. No change of clothes. No medications. No charger. They spent the night at a hotel eating vending machine snacks. She is not careless. She just did not have a bag ready.
Most people do not.
The 72-Hour Kit Checklist
Water
Pack one liter per person per day, plus a way to get more. Three liters of water weighs about 6.5 pounds, which is manageable but heavy over distance. A portable water filter lets you refill from any freshwater source and dramatically reduces what you need to carry.
What to pack:
1 to 2 water bottles (filled)
Sawyer Squeeze Water Filter ($35) or LifeStraw ($20)
Water purification tablets as backup ($8 for a 50-count bottle)
Food
Calorie-dense, no-cook, no-refrigeration. You are not making meals. You are keeping your body fueled.
What to pack:
Granola bars or energy bars (6 to 8)
Peanut butter packets or small jar
Dried fruit or trail mix (1 lb)
Crackers
Beef jerky or tuna packets
Total calories needed: roughly 1,500 to 2,000 per person per day. That is about 4,500 to 6,000 calories for three days.
Light and Power
Headlamp ($15 to $25) with extra batteries. A headlamp keeps your hands free.
Portable phone charger (10,000 mAh minimum, $20 to $40). Charges most smartphones two to three times.
Extra charging cable for your specific phone.
Shelter and Warmth
Emergency bivvy or space blanket ($5 to $15). Reflects body heat. Weighs almost nothing.
Lightweight rain poncho ($5).
One change of clothes appropriate for the season. Update this twice a year.
Warm hat and work gloves if in a cold climate.
First Aid
Small first aid kit with bandages, gauze, antiseptic, pain relievers, and any personal medications.
72-hour supply of daily prescription medications (rotated monthly).
Any critical medical items: inhaler, EpiPen, insulin supplies.
Documents and Money
Photocopies of ID, insurance cards, and prescriptions in a waterproof bag.
Emergency contact list on paper (5 to 10 numbers).
$100 to $200 in small bills. ATMs do not work without power.
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What Bag Should You Use?
The bag matters less than people think. A school backpack works. A duffel bag works. Any bag you can carry over your shoulder and walk with for a mile.
If you want a dedicated pack, the Kelty Redwing 32 ($100) offers enough room for a solid 72-hour setup. For a higher-end option, the Mystery Ranch 2 Day Assault Pack ($200) is military-grade quality.
But seriously, do not let the bag be the reason you do not start. Use what you have.
What to Skip
Most bloated checklists include items that add weight without adding value. Skip these until your basics are solid:
Firearms and ammunition. This is a 72-hour comfort kit, not a combat loadout.
Giant survival knives. A basic folding knife handles 99% of tasks.
Fire-starting kits with multiple redundancies. One lighter and a pack of matches is enough for 72 hours.
50 feet of paracord. Maybe useful, but not in the first tier.
Water bladder systems. Bottles and a filter are simpler and less likely to leak.
A full change of tactical clothing. One set of weather-appropriate clothes. That is it.
Creek Stewart, founder of Willow Haven Outdoor survival school and author of Build the Perfect Bug Out Bag, offers advice that goes against the usual internet checklist approach: do not start with a list. Start with your specific risks.
Where to Store It
Put the bag somewhere you can grab it in under two minutes.
A hook by the front door
A hall closet near the main exit
The trunk of your car
A spot in your bedroom closet (accessible if you wake up at 3 AM)
A kit in the back of the garage behind boxes is not an emergency resource. It is stored inventory.
Build It This Weekend
Right now (5 minutes): Grab a backpack. Put a water bottle, a flashlight, and a phone charger in it. Set it by your front door.
This weekend (1 to 2 hours): Buy the food, first aid basics, and extra batteries. Total cost: $50 to $75.
Within two weeks: Add the water filter, document copies, and cash. Total cost: $50 to $75 more.
You now have a functional 72-hour kit for under $150.
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Frequently Asked Questions
How much does a 72-hour emergency kit cost?
A basic 72-hour kit costs $100 to $150 for one person. The biggest expenses are a water filter ($20 to $35), a portable phone charger ($20 to $40), and food ($15 to $25).
What is the difference between a 72-hour kit and a bug out bag?
They are essentially the same thing with different names. A 72-hour kit (FEMA term) and a "bug out bag" (preparedness community term) both refer to a pre-packed bag with supplies for approximately three days.
Should I make a 72-hour kit for each family member?
Yes. Each person who can carry a bag should have their own kit. Children can carry lighter packs. Infants and toddlers need their supplies distributed among adult kits.
How often should I update my 72-hour kit?
Check batteries, medications, and electronics every three months. Swap seasonal clothing and rotate food every six months. Do a full kit audit once a year.
What is the most important item in a 72-hour kit?
Water and a way to get more of it. A water filter like the Sawyer Squeeze ($35) turns any freshwater source into drinking water. After water, prescription medications and a communication plan are the next priorities.
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