One Person Compact Survival Kit Long Life Food & Water

Neatly packaged in a cardboard box, this kit is something you just put in your boat, home store, or the boot of your car and then forget about for the next four years. Top quality contents, including the 6-hr lightstick, water purification tablets and foil blanket. The survival rations are triple packed (tough card box, airtight foil, then clear plastic) and then 18 square biscuits packed in 2's in greaseproof paper. They taste like a fine unsweetened shortbread biscuit and each box is designed to provide 2500 calories, so I make that 138 cal per biscuit, or thereabouts.
The 500mL water, in a tough alu plastic pouch, is divided into 10 x 50 mL sachets that you tear open at the corner to drink.
As a diabetic, I always keep supplies of food and water to hand when I am travelling - this fits the bill perfectly, and I'd rather eat one or two of these biscuits to keep going than many of the very sweet cereal bars you can buy (and actually these work out less expensive). So whether it's you alone having to survive for 24 hrs, or a car-full of you for an essential pit-stop, this is eminently fit for purpose.