If you enjoy spending time in the outdoors, you should make sure that you invest in a good quality pocket knife. In fact, when you are out in the wild, having the right pocket knife can actually be the difference between life and death! Survival knives can be used for building shelter, food preparation, cutting firewood, opening tins, making fire, first aid treatments, and fashioning other tools. If you are buying a new survival knife then you should think long and hard before you make your purchase, because survival knives come in a variety of different shapes and sizes. Here is some advice on finding the best pocket knife for your needs.