A well-stocked emergency backpack should cover five basic needs: water, food, shelter, first aid, and communication. The goal is to keep yourself and your family self-sufficient for at least 72 hours, which is the standard window emergency agencies use when planning disaster response. Here’s exactly what to pack, how much of it you need, and how to keep it all at a manageable weight.
Water and Hydration
Water is the single most important item in your pack. Store at least one gallon per person per day, covering both drinking and basic sanitation. For a three-day kit, that’s three gallons per person. That alone weighs about 25 pounds, so for a backpack you’ll need to make practical trade-offs. Carry as much water as you reasonably can (at least one full day’s supply) and supplement with water purification tablets or a portable filter that can treat water from natural sources.
If you’re storing water in your pack long-term, use commercially sealed bottles rather than filling your own containers. Sealed bottles stay safe for years and don’t require rotation as often.
Food That Lasts and Packs Light
Focus on calorie-dense, shelf-stable foods that don’t need cooking or refrigeration. Good options include:
- Peanut butter and crackers
- Protein bars or energy bars
- Nuts and dried fruit
- Ready-to-eat canned food (meats, fruits, vegetables)
- Dry cereal or granola
- Freeze-dried meals
If you include canned food, pack a manual can opener. Canned goods typically stay safe for two to five years, with low-acid foods like canned meat lasting on the longer end. Freeze-dried food can last 25 years or more, making it ideal for a pack you want to store and forget about for long stretches. A sealed box of cereal stays good for about six to eight months past its “best by” date. Toss in a few comfort foods too, like hard candy or chocolate. Morale matters during a disaster.
First Aid Kit
You can buy a pre-made first aid kit or build your own. The American Red Cross recommends these core supplies as a baseline:
- 25 adhesive bandages in assorted sizes
- Sterile gauze pads (3×3 and 4×4 inches), at least five of each
- Two absorbent compress dressings (5×9 inches) for larger wounds
- One roll each of 3-inch and 4-inch roller bandages
- Adhesive cloth tape (10 yards)
- Two triangular bandages (usable as slings or tourniquets)
- Antibiotic ointment packets
- Antiseptic wipes
- Aspirin
- Hydrocortisone ointment for itching and rashes
Add any prescription medications you take daily, along with a spare pair of glasses or contacts if you wear them. Keep medications in their original labeled bottles so there’s no confusion about dosage.
Light, Power, and Communication
When the power goes out, you need three things: a way to see, a way to charge your phone, and a way to get information.
Pack a reliable flashlight with extra batteries. LED flashlights last significantly longer per set of batteries than older bulb types. A headlamp is even better because it frees up your hands.
A hand-crank or solar-powered radio that receives NOAA Weather Radio broadcasts is essential. NOAA Weather Radio is an all-hazards network, meaning it covers not just storms but chemical spills, AMBER alerts, and other emergencies. Look for a radio with Specific Area Message Encoding (SAME), which lets you program alerts for your county so you’re only woken up by threats in your area. Many emergency radios combine a flashlight, radio, and USB charging port in one device, which saves space and weight.
Bring a portable battery pack or a solar charger for your phone. Even if cell towers are down, your phone stores important contacts, can access offline maps, and works as a flashlight in a pinch.
Tools and Fire
A quality multi-tool replaces a dozen individual items. Look for one with pliers, a knife blade, a can opener, and a wire cutter at minimum. Some survival-oriented models also include a fire starter striker, whistle, and blade sharpener, packing 17 or more functions into a package under 8 ounces.
For fire starting, pack waterproof matches or a ferrocerium rod. Duct tape is another versatile must-have: it works for sealing shelters, patching gear, taping windows, and improvising bandages in a pinch. A whistle should be in your pack as well. Three short blasts is the universal distress signal, and a whistle carries much farther than shouting, especially if you’re injured or exhausted.
Include a non-sparking wrench or pliers for shutting off gas and water lines at your home. A printed local map belongs in every kit, since your phone’s GPS may not be available.
Shelter and Warmth
Pack a sleeping bag or warm blanket for each person. If space is tight, emergency blankets (sometimes called space blankets) are a lightweight alternative. These thin, metallic-coated sheets weigh just a few ounces but reduce heat loss from wind, evaporation, and radiation. They won’t replace a real sleeping bag in prolonged cold, but they can prevent hypothermia in a crisis. If you live in a cold climate, add extra blankets or a heavier-rated sleeping bag.
Include one complete change of clothing: long-sleeved shirt, long pants, and sturdy closed-toe shoes. Wool or synthetic fabrics are far better than cotton because they retain warmth when wet. Cotton loses nearly all its insulating ability once damp, which makes it dangerous in cold or rainy conditions.
Plastic sheeting and duct tape are worth their weight if you need to shelter in place. They can seal windows and doors against contaminated air during a chemical or industrial emergency. A dust mask (N95 or better) helps filter airborne particles from smoke, dust, or debris.
Sanitation and Hygiene
Sanitation is easy to overlook, but hygiene-related illness can become a serious problem fast when normal infrastructure is down. Pack moist towelettes, hand sanitizer, garbage bags with ties, and basic personal hygiene items like a toothbrush, soap, and feminine supplies. Garbage bags double as rain ponchos, ground covers, and improvised toilets when lined with kitty litter or absorbent material. Paper towels and a roll of toilet paper (compressed flat to save space) round out this category.
Documents, Cash, and Identification
Keep copies of your most important documents in a waterproof container or zip-lock bag inside your pack. This includes identification (driver’s license, passport), insurance policies, bank account information, and medical records. During a disaster, proving your identity and insurance coverage can mean the difference between getting help quickly and waiting days.
Cash is critical. ATMs and card readers don’t work without power. Keep small bills and coins, since stores and vendors may not be able to make change.
Supplies for Kids and Pets
If you have young children, add infant formula, diapers, and a few small activities like coloring books, cards, or a favorite toy. Keeping kids occupied reduces stress for the whole family during long waits at shelters or evacuation sites.
For pets, the CDC recommends packing a two-week supply of food and water stored in waterproof containers, along with any medications your pet takes. Include a leash, collar with ID tags, a harness, non-spill food and water dishes, and a manual can opener if you’re packing canned pet food. Photocopies of vaccination records and proof of ownership should go in your document bag, and make sure your pet’s microchip information is current.
Managing Pack Weight
All of this gear does no good if the pack is too heavy to carry. A loaded backpack should weigh no more than about 20 percent of your body weight. For a 150-pound person, that’s a 30-pound limit. For a lighter person or someone with mobility issues, aim closer to 10 to 15 percent.
If you’re over the limit, prioritize ruthlessly: water, food, first aid, and warmth come first. Documents and communication gear weigh almost nothing and should always make the cut. Tools and extra clothing are the easiest categories to trim. Choose a multi-tool over individual tools, emergency blankets over full sleeping bags, and energy bars over canned goods to keep weight down without sacrificing coverage.
Keeping Your Kit Fresh
An emergency backpack isn’t something you pack once and forget. Review your kit at least once a year. Check expiration dates on food, water, medications, and first aid supplies like antibiotic ointment and eyewash (which typically expires after three years). Rotate out food that’s approaching its best-by date and use it in your regular meals so nothing goes to waste. Test your flashlight and radio batteries, and make sure your phone charger still works with your current phone. Update documents and cash as needed. Pick an easy-to-remember date for your annual check, like the start of daylight saving time or a birthday, so it actually happens.