I think what he is wanting is a 'drop me anywhere, any time, any season kit' that will fit in aprox 15" x 13" x 10", 854 cu. in. that you can 'survive' with.
Other then the very basics of a survival kit, you'd have to try to address the issues of desert, mountain, both temperate tropical forest, swamp, savana, oceanic, extreme high altitude, major urban, minor urban, etc in both the height of summer and the depth of winter, the thaw of spring and the frost of fall, through earthquake, tornado, hurricane, flood, storm surge, and blizzard, while avoiding and protecting yourself from crazed rioters, rabid bears, clutches(?) of baby rattle snakes, swarms of killer bees and malaria mosquitos with west niles, all while keeping yourself from bleeding out from a broken bone sticking out of your skin.
Man, that sounds like it should be pretty easy...
Sould fallout be in there? Everything else is so.. Add something for radioactive fallout too..