>>680172i had two space bivvies in my kit in case something really bad happens and we must fight hypothermia. very compact compared to wool or any blankets.
there is also 2l water in the kit because dehydration decreases performance and eating snow without boiling is risky. and some power bars for comfort and energy.
the two major needs are shelter/warmth and water if you expect to be rescued in a few days.
the rest of the kit comes into play when you have to leave the car like the car is in a dangerous spot or damaged and does not provide shelter. then the hatchet and ropes and whatnot can help greatly to make a shelter until you can be rescued. even have a stainless cup to boil snow/water in case can make a fire.
the kit with a bit of luck and skills can provide the essentials for a prolonged period but really it's meant to be a 1-3 day thing.
i got the freezer bags since i made the list
