RogerA, try looking at Sportsmans Guide on and look for the hardige boxes. They usually come in different sizes from fairly small one that held night vision sights, to larger ones that usually held anything that could be put in them. Pretty sure what they sell is used unless otherwise stated. All the people in your party should carry an immediate survival kit ready to be used right then and there. If it's not on your person at the time you need it then it's worthless. Larger Hardige boxes can be added and kept in a base camp. This way if the personal kits are being used they can be replenished from the bigger ones plus a broader selection of things like stoves, camping fuel, or gas canisters for the stoves and lamps. And do not forget medications for those that take them. Frank