1.Humans cannot survive more than three hours exposed to extreme low- temperature   .
2.Humans cannot survive more than three days without water.
3.Humans cannot survive more than three weeks without food.

The main things that one has to find out are shelter, fire, water, food, and navigational aids. The shelter could be any natural or manmade cave, or anything that could cover you from the elements. One should always know how to start a fire without matches. It might be from sunlight or flint stone. Fire can be life saver in cold weather. In colder or warmer temperatures the need for water is greater. Normally we lose some two to three liters of water through our body.

Even though not so vital, lack of food in cold conditions can be dangerous. It can stimulate low morale, loss of mental clarity, and weaken the immune system. One should be sane enough to find their way back to safety. One should be able to follow celestial navigation and navigation by observation.

Clothes to include in your kit are jackets, shoes that are easy to walk in and waterproof, socks, gloves, jeans or other durable pants, and a long-sleeved shirt.  The clothes are not only a good way to keep everyone warm, but can also replace clothes that have become wet or ripped.  You may also want to include blankets or sleeping bags in your clothing kit to be extra safe.