You don’t know when you’ll need basic first aid supplies—for yourself or for others. Having the simple supplies to treat minor illness or injury readily available can be incredibly convenient, which is why I always have a small first aid kit in my bag/backpack.

Adventure Medical Kits Ultralight Watertight .5
Compact, lightweight, and waterproof with most of the essentials needed for outdoor emergencies. Recommend adding finger-tip/knuckle bandaids, common OTC medications, and possibly a thermometer.
This is the kit I’ve carried for years, with a few modifications. I take the roll of tape out and wrap it around the small canister used to hold the tweezers/safety pin, and then I add a few things. First off, I always have a few fingertip and knuckle bandaids. For cuts/scrapes on your fingers, these are invaluable. Second, I always add a few small travel-sized medication tubes with some common OTC meds I like to have on hand. The kit comes with ibuprofen and acetaminophen, but I like to add naproxen (Alleve) because it lasts much longer and works better for certain situations (like the severe headaches I sometimes get). I also add some ephedrine (Sudafed, the stuff you have to get from behind the pharmacy counter). I prefer the extended release variant, which lasts all day. This is the best decongestant you can get. The pseudoephedrine decongestants stocked in the pharmacy aisle don’t work. Finally, I add some generic Tylenol Severe Cold and Flu because that’s my goto for any kind of upper respiratory virus/cold. I used to also carry cetrizine (Zyrtec) for seasonal and pet allergies, but haven’t needed it since starting prescription anti-allergy medications through Allermi.

Adventure Medical Kits Mountain Series Medical Kit – Explorer
Comprehensive set of supplies in an easily organized kit that makes it quick to get what you need. Recommend adding better trauma shears and a thermometer.
Your vehicle is your home away from home—a place where you can keep more robust first aid supplies than you’d carry easily with you. For this, I recommend the Adventure Medical Kits Mountain Series Explorer. While this is designed for wilderness adventures, I value the organization this kit adds. The layout is exceptional and makes it quick and easy to access whatever supplies I need in the moment. The whole kit is compact and self-contained in a fairly rugged case.
Where you place a vehicle first aid kit does matter. A kit with enough supplies probably won’t fit in the glovebox. Placing the kit under a seat may make it hard to access conveniently if you have passengers or cargo. In my Jeep, this kit fits great in a side cubby in the back, where it is always easy to get to even if I have the back filled with stuff. In our minivan, it fits great under the center console, making it easy to access from the front or the back. When I had a car, it actually fit in the glovebox just fine.
I do recommend adding better trauma shears and a thermometer. See below for more information on additions.

Be Smart Get Prepared OSHA/ANSI First Aid Kit
Relatively well organized and comes ready to hang in a convenient location. This kit covers most of the basics with plenty of supplies. I add a tube of antibiotic ointment, and you should also have some common OTC medications and a thermometer.
A home first aid kit should be readily accessible and have room for the common supplies needed for minor injuries. OSHA/ANSI workplace kits do a good job of meeting these objectives. I like this kit for its organization and the wall hook it comes with to make mounting it in a convenient spot easy.
For most people, the best location for a first aid kit is in the kitchen. This is a central area in the home, and the one place where you’re most likely to cut yourself, needing a bandage. Ours is mounted on the wall inside the pantry. I prefer the wall-mounted options because they are much less likely to end up with stuff on top of them or in front of them, blocking access in an emergency.
While this kit does come with single-use packets of antibiotic ointment, it makes sense to add a tube of antibiotic ointment. You should also have common OTC medications and a thermometer somewhere in your home. I think a good starter list of medications should include ibuprofen (Motrin), acetaminophen (Tylenol), cetrizine (Zyrtec), diphenhydramine (Benadryl), loperamide (Immodium-AD, an anti diarrhea medication), famotidine (Pepcid, for gastric reflux/heart burn), Tums, and Sudafed (ephedrine, not psuedoephedrine). For coughs/colds, I rely on the generic Tylenol Severe Cold and Flu along with extended release Sudafed. If you have young children, having the appropriate formulations of liquid Tylenol, liquid Motrin, and liquid cetrizine (Zyrtec) is a good idea. Benadryl isn’t usually recommended for young children. You should also have a thermometer.

North American Rescue Eagle IFAK
Has all the essentials sourced from reputable manufacturers and packaged in a quickly accessible pouch that is easy to mount on a bag.
First aid kits typically don’t include a tourniquet or hemostatic gauze. Tourniquets can be truly life-saving. It is possible to lose so much blood from some injuries that you’ll die before first responders can get to you. These aren’t just for gunshot wounds either—I’ve had numerous patients who needed a tourniquet after cutting themselves on broken windows, with saws, or just from a fall onto something sharp.
An IFAK (Individual First Aid Kit, a military term) or bleeding control kit should contain a tourniquet as well as a compression dressing, regular gauze, hemostatic gauze, and a chest seal. For those with adequate training, a chest decompression needle and a nasal airway are good additions to round out the minimum necessary equipment for keeping the airway open and fixing tension pneumothoraces.
Do not buy a tourniquet from Amazon. There are tons of counterfeit tourniquets out there, and those often fail when applied correctly to a patient. Buying directly from a company like North American Rescue ensures you are getting the real deal that will work when you need it to.

Adventure Medical Kits Mountain Series Medical Kit – Hiker
A compact kit that makes finding the right items quick and easy. Great option for most day-to-day recreational activities, and the kit that I’ll throw in the stroller or backpack for
This kit goes in our stroller or backpack for day trips—think outings at the zoo or trips to the park. It covers all the basics, and is easy to find things in. The compact size makes it ideal for quickly grabbing and carrying.
These activities are generally characterized by a combination of being further from medical help, having an increased risk of certain injuries such as broken bones, and often requiring leaving an area on foot to get to help. A good first aid kit is essential for these activities—but don’t forget having a survival kit as well.

Adventure Medical Kits Ultralight/Watertight Medical Kit – .7
Compact, lightweight, and waterproof with most of the essentials needed for outdoor emergencies. Recommend adding a SAM splint, SWAT-T tourniquet, QuickClot gauze.
The primary injuries likely encountered in most outdoor activities are simple cuts, scrapes, blisters, and splinters. Having a variety of bandages, gauze, moleskin, and tape covers most of your needs. For outdoor activities, having a waterproof kit is essential. This kit covers those basics and includes the common meds you need to treat pain as well as allergic reactions.
More severe injuries are possible—broken bones and dislocated joints, primarily, along with some risk of more severe cuts or puncture wounds. Unless you’re hunting, the risks of a gunshot wound or similar major penetrating injury is lower. I augment my kit with a SAM splint (because I really don’t want to have to walk out of the woods cradling a broken arm), a SWAT-T tourniquet for major bleeding control, and QuickClot gauze for bleeding control. To help with space, I wrap the cloth tape around the tube that holds the splinter/tick remover forceps and safety pins, and I remove the duct tape.
Having a first aid kit is only the first step in being prepared. I also always have a small survival kit, aimed at being able to survive potentially harsh environments for at least overnight. When building a survival kit, a good place to start is the Ten Essentials. For daytrip or overnight outdoor activities, that kit includes:
See more on my post on Survival Kit Recommendations.
While these first aid kits are robust, they often lack some key items I almost always add:
A first aid kit is only useful if it is CLOSE at hand when an emergency happens, EASY to open and find what you need, and STOCKED with the right supplies for the situation.
Furthermore, a first aid kit provides you with the supplies and tools—you have to bring the knowledge and critical thinking.
The most important item in any first aid kit is your training. The first thing you should get is a First Aid class, at a minimum.
If you’ve got the training, have decent problem-solving skills, and can stay calm, you can improvise your way through almost any medical emergency. If you don’t have these, you’ll struggle with even the fanciest first aid kit.
What you put in a first aid kit should be based around
At a minimum, look for a course from a reputable sponsoring organization that includes hands-on skills training and covers First Aid, CPR, AED use, and covers both adults and children. American Red Cross, American Heart Association, and ECSI all provide excellent courses. You also want to make sure the course covers opioid overdoses.
You should also look for some form of a “Stop the Bleed” course—American Red Cross calls theirs the “FAST” first aid class. Stop the Bleed is a nationally standardized curriculum focused on rapid control of life-threatening bleeding from gunshot wounds or major cuts and stabbing wounds. While oriented towards active shooters/IMCI1 events, the same techniques apply for a wide range of less dramatic causes of injury. While I’ve applied tourniquets and done aggressive bleeding control in plenty of violent assaults and shootings, I’ve probably used these treatments at least as often for workplace injuries (for instance, don’t use a circular saw above your head while on a ladder!) and accidental cuts (for example, maybe its not a great idea to clean a large glass aquarium while drunk).
If you want to get more training (which I definitely recommend):
The choice of a first aid kit depends on the ACTIVITIES you’ll be using it for, how many PEOPLE you need to care for, and your PROXIMITY to medical care and/or resupplies; your SKILL LEVEL also may play a role in this as well.
Different activities have different risk profiles as well as specific constraints on what you can carry. For instance, the range of likely injuries while mountain biking are different than what you’d encounter in your kitchen, and the amount of space you have for carrying equipment is much more limited compared to what you can fit in your kitchen cabinet.
I have a strong preference for Adventure Medical Kits because of the quality of their kits over the years. Their bags are well-made, the kit organization makes sense, and the supplies themselves are excellent.