How to Build a 72-Hour Bug Out Bag: The Ultimate Checklist

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A few years back I was visiting a friend near Oroville, California when a wildfire jumped containment lines about eight miles from where we were staying. We had maybe 45 minutes before the sheriff’s deputies started rolling through the neighborhood with bullhorns.

I grabbed my bag. Already packed. I was rolling in four minutes.

My friend spent 35 of those 45 minutes running back and forth between rooms, filling two giant suitcases with stuff he didn’t need, couldn’t find his car keys, and eventually left without his medications.

That’s the whole argument for a bug out bag right there. You don’t pack when things go sideways. You pack now, on a Saturday afternoon, with nothing urgent happening. Then when it matters — four minutes and you’re gone.

This article is the checklist version. No long explanations, no gear philosophy deep-dives. Just the list, the weights, the budget options, and the common mistakes I’ve watched people make over 25 years of doing this. Print it. Pack it. Test it.

What a Bug Out Bag Actually Is

Short version: a bag packed in advance with everything you need to survive for 72 hours away from home. That’s it.

Seventy-two hours covers most disaster scenarios — long enough to get clear of a wildfire, flood zone, chemical spill, or civil unrest situation. Long enough for emergency services to set up shelters or for conditions to stabilize.

It’s not a “live in the woods forever” bag. Not a collapse-of-civilization kit. Just three days of staying alive and keeping your head on straight.

Other names you’ll hear for the same thing: go bag, 72-hour bag, GOOD bag (Get Out Of Dodge), INCH bag (I’m Never Coming Home — bigger and heavier, not what we’re building here). They’re all variations on the same concept.

The One Rule That Overrides Everything Else

Max loaded weight: 20% of your body weight.

Go over that number and you’ll break down. Not maybe — you will. The bag that’s too heavy to carry for six miles is worse than no bag at all, because it gives you a false sense of security right up until your knees give out.

I’ve tested this personally. I packed a 47-pound bag for a training exercise once and my lower back was done by mile four. That was with a good internal frame pack. Twenty percent. Non-negotiable.

The Bug Out Bag Checklist — By Category

Bag Selection

Pick the right container before you pick a single item to go in it.

• Size: 40–55 liters. Smaller and you can’t fit 72 hours of gear. Bigger and you’ll overpack it.
• Frame type: Internal frame for mobility and balance on uneven terrain. External frame if you’re doing long-distance carrying with heavier loads. For most people, internal frame.
• Hip belt: Non-negotiable. Transfers weight from shoulders to hips. This is the single most important comfort feature in any pack.
• Color: Muted. Olive drab, gray, tan, dark green. Not bright orange, not coyote brown with MOLLE webbing and a Punisher patch. Blend in. You want to look like a hiker, not a militia.
• Material: At minimum 600D polyester. Ripstop nylon if you can find it.

Target weight (empty bag): 2–4 lbs

Water — Category Weight Target: 3–5 lbs

Water is the category where cutting weight is the wrong call. You need enough to drink and purification to make more. Period.

Carry:

• 1 liter Nalgene or similar hard-sided bottle (BPA-free)
• Collapsible water bag, 2–3 liter (Platypus, CNOC)
• Sawyer Squeeze water filter or Sawyer Mini — primary purification
• Aquamira chlorine dioxide drops — backup purification (also kills viruses, Sawyer doesn’t)
• Water purification tablets as tertiary backup (Potable Aqua)

Why two purification methods? Filters handle bacteria and protozoa. Drops handle viruses. Flood zones, hurricanes, and municipal water failures often push sewage into water sources. Both threats are real.

Food — Category Weight Target: 3–5 lbs

Calories and portability. That’s the entire food philosophy for a bug out bag. You’re not camping. You’re possibly moving fast under stress.

Carry:

• 6–8 energy bars (Clif, Kind, RX — whatever you’ll actually eat)
• 4–6 foil pouches of tuna, salmon, or chicken (not cans — too heavy)
• 4 peanut butter squeeze packs (~190 calories each, Jif makes individual ones)
• 4–6 instant oatmeal packets (hot meal if you have fire and a cup)
• Hard candy — 20–30 pieces (fast glucose when your blood sugar drops)
• Electrolyte powder packets — 6–10 (Liquid IV, Nuun, or generic)
• 1 spork or titanium spoon
• Small titanium or stainless cup (doubles as cooking vessel)

Target calories: 5,000–8,000 across 72 hours. You won’t die on less, but you’ll make worse decisions.

Skip: MREs (heavy, expensive, half inedible), protein powder (useless weight), alcohol stoves and full cook kits (too complex, too heavy for 72 hours).

Shelter and Warmth — Category Weight Target: 2–4 lbs

Hypothermia kills more people in survival situations than almost anything else. A rainy 55-degree night is genuinely dangerous to someone who’s wet and not sheltered.

Carry:

• Emergency bivvy — SOL Escape Bivvy or similar (NOT a foil mylar blanket — they tear and don’t breathe)
• Compact tarp, 8x10 — shelter, rain fly, ground cloth
• 50 ft paracord (10mm or 550 cord)
• 6–8 metal tent stakes
• Closed-cell foam sit pad, trimmed to torso length (ground insulation — stops cold ground from draining body heat)
• Work gloves, lightweight (protect hands, help with shelter setup)
• Wool or synthetic watch cap

Optional but worth it: Lightweight rain poncho. Doubles as emergency tarp. Keeps you dry while moving.

Skip: Full sleeping bags (too bulky and heavy for this use case). The bivvy handles it.

Fire — Category Weight Target: Under 1 lb

Two methods, always. Fire is warmth, signaling, water boiling, and morale. All of those matter.

• BIC lighter × 2 (in waterproof zip bag)
• Ferrocerium rod, 4–6 inch (works when wet, lasts thousands of strikes)
• Waterproof matches, strike-anywhere (backup)
• Cotton balls with petroleum jelly in a small container (tinder — lights with a single spark, burns 3–4 minutes)
• Dryer lint bag (free tinder, just collect it)
• Small folding knife or Swiss Army knife

Carry what works, not what looks cool. Plasma lighters, UV rods, Swedish firesteels — some are great, some aren’t. My BIC lighters have never failed me once. Ever. My fancy “survival lighter” failed in about 40-degree weather. Keep it simple.

First Aid — Category Weight Target: 1–2 lbs

Pack for what actually happens during evacuations: blisters, cuts, sprains, headaches, and GI issues from stress. Not gunshot wounds.

Wound care:

• Moleskin sheets (blisters will stop you faster than almost any injury)
• Medical tape, 1” roll
• Assorted bandaids, 20+
• Sterile gauze pads, 4x4” — 6 packs
• ACE wrap, 3”
• Butterfly closures / steri-strips

Medications:

• Ibuprofen, 30 tablets
• Acetaminophen, 30 tablets
• Imodium / loperamide — anti-diarrheal (you will need this)
• Benadryl — antihistamine/allergy
• Antacids
• 7-day supply of any prescription medications (rotate every 90 days)

Tools:

• Antibiotic ointment (Neosporin)
• Tweezers, fine-tip
• Small scissors
• Nitrile gloves, 2 pair
• CPR face shield
• SAM splint

Advanced (worth adding):

• Tourniquet (CAT or SOFTT-W) — small, light, saves lives
• Chest seals, 2 (vented)
• Israeli pressure bandage

Navigation — Category Weight Target: Under 1 lb

Your phone is great until the cell towers are overloaded (which they will be during any major disaster) or the battery dies (which will happen).

• Baseplate compass (Silva Ranger or similar — not a button compass, not a watch compass)
• Regional road maps, printed — your state plus adjacent states
• Topo map of your local area, laminated or in a waterproof bag
• Written list of: 3 rally points, 3 alternate routes out of your area, addresses of family contacts

I’ll be straight with you: most people cannot actually use a map and compass. If that’s you, learning it takes one afternoon and a YouTube video. It’s worth that afternoon.

Communication — Category Weight Target: 1–2 lbs

During any large-scale emergency, assume cell networks are unreliable. Build around that assumption.

• 10,000 mAh battery bank (charges 2–3 phones, weighs about 6 oz)
• USB-C and Lightning cables
• Hand-crank or solar emergency radio (NOAA weather band)
• Whistle, pealess — signaling (the Fox 40 Classic is loud enough to hear a mile away)
• Signal mirror
• Midland or Baofeng handheld radio if you have family/group — pre-programmed with local channels

Optional: Garmin inReach mini for two-way satellite texting. About $350 plus subscription. Overkill for most scenarios. Worth it if you’re in a wildfire-prone area or live rurally.

Documents and Money — Category Weight Target: Under 0.5 lbs

This category gets skipped more than any other. Don’t skip it. When your phone dies and you’re at a checkpoint with no reception, a printed contact list and a photocopy of your ID are worth more than any piece of gear.

• $200–$300 cash, small bills (fives, tens, twenties) in a waterproof bag
• Photocopies of: driver’s license, passport, insurance cards, vehicle registration, prescription list, emergency contacts
• USB drive with digital copies of same documents
• Written contact list (numbers and addresses, not just names — what good is “call Mom” when her number is only saved in your phone?)
• Physical key for any safe or lockbox you might need to access

When cash matters, it really matters. I’ve watched people at gas stations during emergencies with dead card readers, standing there tapping their phones on terminals that haven’t worked in four hours. The guy with twenties drives away. Everyone else waits.

Tools and Misc — Category Weight Target: 1–2 lbs

• Headlamp with extra batteries (Black Diamond, Petzl — hands-free matters at 2 AM)
• Fixed-blade or folding knife, 3–4 inch blade
• Multi-tool (Leatherman Wave or Charge — pliers, wire cutter, saw)
• Duct tape — 15–20 ft wrapped around a pencil (don’t carry the full roll)
• Zip ties, assorted — 20+
• Sharpie marker
• Notepad, waterproof pages or in a zip bag
• N95 masks × 4 (wildfire smoke, dust, chemical incidents)
• Safety glasses
• Work gloves (if not already packed in shelter kit)
• Change of underwear and socks (you’ll thank yourself, trust me)
• Travel-size soap, toothbrush, toothpaste
• Toilet paper in a zip bag (compressed camping TP)
• Hand sanitizer, 2 oz

Budget Tier Breakdown

You don’t have to spend a fortune to have something solid. You do have to spend some money. Anyone telling you to build a complete bag for $50 is either selling garbage or has never actually used one.

I’ll be straight with you: the jump from Starter to Solid is worth every dollar. The jump from Solid to Premium is mostly about redundancy and durability, not survival capability. If you’re starting fresh, aim for Solid.

Where not to cheap out: water purification, first aid, shelter. These categories save lives.

Where you can save money: bag itself (a $90 Kelty works fine), food (buy on sale), duct tape and zip ties (hardware store beats outdoors store every time).

What NOT to Pack — Common Mistakes

I’ve helped a lot of people build these bags. These are the things I pull out every single time.

Things people pack that they shouldn’t:

• MREs — High weight, low calorie density versus the space. A single MRE weighs about 1.5 lbs. Six energy bars weigh 12 oz and pack more calories. The math is bad.
• Cast iron cookware — I was 22 when I packed a cast iron skillet. I thought I’d be making something good during a crisis. The person who hikes out of a disaster scene making ribeyes exists only in my memory as a cautionary tale.
• Full-size sleeping bags — Too bulky. A bivvy and a tarp handles warmth for 72 hours. Save sleeping bags for basecamp setups.
• “Cool” gadgets you’ve never tested — If it’s still in the box when you pack it, leave it. Only tested gear goes in.
• Canned food — The weight-to-calorie math is terrible. Foil pouches only.
• Two weeks of clothing — One change of socks and underwear. That’s it.
• All your favorite books — I’ve seen this. An actual paperback novel, 400 pages. No.
• Laptop or tablet — Your phone handles everything a tablet does and weighs a quarter as much.

Things people forget that they need:

• Prescription medications (mentioned twice because people still forget)
• Cash
• Physical map (mentioned twice because everyone thinks their phone is fine)
• Extra batteries for the headlamp
• Moleskin (blisters are the great equalizer — they will humble you)
• Toilet paper

Vehicle Add-On Kit

If you’re evacuating by car — which is most people most of the time — keep a secondary kit in your vehicle. Doesn’t need to be full-sized. Think: what do I need if the car breaks down or I have to walk the last few miles?

• Water, 1 gallon jug in the trunk
• Jumper cables or jump starter pack
• Basic roadside kit: flares, triangle reflectors, work gloves
• Tow strap
• First aid kit (separate from your BOB)
• Change of clothes, shoes suited for walking
• Phone charger (plug-in and battery bank)
• Protein bars, 6–8
• Emergency blanket
• Extra medications (if you take them daily)
• Physical road atlas

The vehicle kit lives in the car permanently. The bug out bag comes with you when you leave the vehicle.

Bag Weight Audit — Where Your Pounds Actually Go

Do this exercise before you finalize your bag. Weigh every category separately on a kitchen scale.

If you’re over your 20% target, start with shelter (swap sleeping bag for bivvy), then food (swap cans for pouches and energy bars), then tools (duct tape wrapped around a pencil, not a full roll).

Maintenance Schedule

Packing once and forgetting it is almost as bad as not packing at all. Gear expires. Batteries die. Medications go bad.

Every 6 months:

• Check all food expiration dates — replace anything within 3 months of expiring
• Rotate prescription medications (swap with fresh supply, use old ones daily)
• Test headlamp and replace batteries
• Test the hand-crank radio
• Test the water filter (flush with clean water, check for damage)
• Check cash — make sure it’s still there and still the right denominations
• Update document copies if anything has changed

Every year:

• Walk test — reload the bag and do a 2-mile walk
• Replace anything that’s showing wear
• Update your contact list and written routes (roads change, people move)

Immediately after any use:

• Restock anything you used
• Fix anything that broke
• Note anything that was missing that you wished you had

Final Check Before You Zip It

Run down this list with your bag in front of you.

• Water: at least 1 liter + 2 purification methods
• Food: 5,000+ calories, all foil/lightweight
• Shelter: bivvy + tarp + paracord
• Fire: minimum 2 ignition sources + tinder
• First aid: complete kit including moleskin and prescription meds
• Navigation: compass + printed maps
• Communication: battery bank + emergency radio
• Documents: cash + copies of critical documents
• Tools: headlamp + knife + multi-tool + duct tape
• Total weight: under 20% of body weight

If every box is checked and the weight is right, you’re done.

The bag in the closet that you built last Saturday beats the bag you’re “going to build soon” every single time. Build it. Test it. Then update it and forget about it until maintenance day.

That’s the whole thing.

For a deeper look at the gear selection reasoning behind each category, read our complete guide to building a 72-hour bug out bag. And if you want to extend your prep beyond 72 hours, the water storage calculator will tell you exactly how much your household needs for any timeframe.

For what stays in your vehicle, the vehicle emergency kit checklist covers the full secondary kit in detail.

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