The first-aid kit you carry on a backcountry trip is different in scope and purpose from the one in your bathroom cabinet. The bathroom kit is for paper cuts and headaches. The backcountry kit is for keeping someone alive long enough to walk out — or for someone else to walk out and get help. Pack accordingly.
The minimum effective kit
For weekend trips with one or two people, the kit that fits in a sandwich-sized stuff sack:
- Wound care: 4x4 gauze pads (4 of them), Kerlix gauze roll, athletic tape (or Leukotape — far better), Steri-Strips for closing wounds, antiseptic wipes (Betadine or alcohol).
- Trauma: nitrile gloves (2 pairs), a 4-inch Israeli-style pressure bandage, a SAM splint (lightweight, can immobilize anything from a finger to a femur), a CAT-style tourniquet (yes, really).
- Medications: ibuprofen (24 tablets), acetaminophen (12), Benadryl (allergic reactions, sleep), Imodium (because backcountry stomach issues are a real risk), antibiotic ointment (Neosporin), an EpiPen if anyone in your group has known anaphylaxis.
- Tools: tweezers (the cheap ones suck — get a pair of slant-tip ones), small scissors (for cutting tape, gauze, clothing), a sharpie (label times of medication, mark a rescue note), a small mirror (for assessing your own face/eye injuries), an emergency blanket.
What to learn before you need it
The kit alone is useless without skills. The high-leverage knowledge:
- How to control bleeding. Direct pressure works for almost everything. Tourniquets only as a last resort, and only on limbs.
- How to recognize shock. Pale, clammy, fast pulse, confused. Lay them down, elevate feet, keep warm.
- How to splint a sprain or fracture. SAM splints + duct tape + a pole = a serviceable splint for almost any joint.
- How to recognize hypothermia. Shivering that won't stop, then stops (very bad). Warm them up immediately — bivvy bag, dry clothes, hot drink.
- How to evacuate. Map of nearest trailhead. Phone numbers for park dispatch. Personal Locator Beacon (PLB) or Garmin inReach for satellite SOS.
The take-a-class point
If you're going to spend serious time outdoors, take a Wilderness First Aid (WFA, 16 hours) or Wilderness First Responder (WFR, 80 hours) course. NOLS, SOLO, and the American Red Cross all run them. The skills compound across every trip you'll ever take.
The most important thing in the first-aid kit is the brain attached to the kit.
Don't carry what you can't use
That suture kit you saw on Amazon? Don't carry it unless you've practiced suturing on a wound model. Stitching a backcountry wound badly is worse than just taping it shut and walking out. Stick to skills you've actually trained.
For dependable lighting and tools to use alongside your first-aid kit, shop the kit. And read our emergency thunderstorm guide for one of the most common backcountry hazards.