Here we are with an exciting review of one of our favourite knife brand, Civivi Orthrus C20037B, a unique and bold semi-fixed blade. Semi? Yes indeed! You transform the knife from a straight fixed blade into a karambit by tilting the orientation of blade. The Civivi Orthrus comes with a nylon sheath and a belt loop. The nylon sheath holds the knife securely and is also detachable, so you can carry the knife in your pocket for everyday carry.