Everyone above,has most of it covered Well!I'll add-Military Poncho/Woobie:Poncho Liner,Drinking Water of course,A few tins of Brisling Sardines,Spam Packs,Vienna Sausages for Instant Protein/Fat absorbtion.MRE Heater&Instant Jello for a Quick Charge,Hot drink.Snickers/3-Musketeers bars for present/future Malady.Silk Top,Bottom,Socks,gloves,Balaclava-Can all fit into a 1-Gal.Freezer Bag.Couple of Camp Towels.Faith in Yourself!