The best quality of a reliable survival knife is its durability. When in the woods, your knife will be in constant use. Therefore your survival knife should be something that will last for long usage. There are a lot of considerations when looking for a survival knife. Know the qualities that survivalist look for. 

Sharpness, it is very important. Remember that your survival knife will be more than slicing. Its sharpness should be satisfying. Select a knife that is made of a hardened steel. Ask for assistance when in store to buy.