A survival knife is a reliable, durable, and multi-purpose tool that can be used in a variety of ways to aid in your survival. Either to cut flesh, shape various materials, or pry things open, a quality survival knife can accomplish most tasks. It’s important to note before we delve into the details that there is no “Best Survival knife” as it all depends on your environment and where you’re most likely to find yourself when SHTF. For instance, the air force will issue pilots with an ASEK or “Aircrew Survival Egress Knife” which usually features a saw on the spine of the blade to cut through thin aircraft skin and acrylic glass. The Army on the other hand will issue survival knives with a flat spine for batoning through firewood. If you’re tight on space and require concealment, you may want to consider a folding knife but that comes at the expense of being less durable. As you can see, there’s a lot to consider when purchasing a survival knife.