My survival kit consists of phone, emergency rations including high glucose tablets, tent, sleeping bag, mobile phone, water, fire lighting equipment, tea and coffee making facilities, small barbecue for cooking, generator to charge mobile phone and power the electric fence I also carry to keep camp safe from badger attack, distress flares, digital radio to stave off cabin fever, notepad and pen to make a diary to later turn into a book/film. Two SAS survival guidebooks, (in case one gets wet) rudimentary fishing equipment, reverse osmosis desalination pump and water purifying tablets, hydrostatically released life raft in case of flash flood, ex Royal Navy once only suit in case raft starts to sink, first aid kit, emergency defib unit, fog horn to summon help, whistle for when that runs out, and bellows to power the whistle in case of punctured lung.
This may sound excessive but I pull a rickshaw behind me whilst stalking for the dog to sit in and I find that it all just about fits in there.