Companion Heavy Duty is the optimal companion for rigorous adventures and challenges. The robust handle and somewhat blunter 27 degree angle edge give it maximum edge resiliency. The blade is extra thick (3.2 mm) to be able to withstand all kinds of pressure and it's made of carbon steel, which is simple to sharpen. The fluorescent colour provides high visibility and makes it easy to locate in all conditions.
Remember that carbon steel needs maintaining though, so make it a habit to wipe the knife and oil the blade after usage.