Rei is inspired by the early tactical folders of the 1990s, a period when functionality, usability, and work comfort were foundational. It emphasizes functionality, ensuring that the grip provides both work comfort and, most importantly, safety during cuts and pushes. For opening the knife, users can choose to use either a thumb stub or a flipper. The goal was to create a fully tactical folder suitable for both service and utility, combining classic tactical folder aesthetics with modern materials.