All of our personal vehicles and camping packs have various first aid kits, but no "trauma" kit. With the state of affairs lately I decided to finally rectify that. I went with the KISS principle with immediately life threatening injuries in mind. Started with a RIP away pouch that can go on a plate carrier, backpack, or belt. Packed with a CAT tourniquet, SWAT tourniquet, Israeli bandage, 2-5x9 pads, 2 rolls of gauze, sterile dressings, 2 decompression needles, two chest seals, a pair of gloves, and a few band aids. The pictured mask is just for size reference. It went together nicely and stayed compact, and will compliment our other first aid/cpr kits nicely. My wife & I both have trauma backgrounds with experience with what we have put in it.