What is your Knife Handle made of !! Carbon Fiber This material is a woven composite of graphite fibers fused together with an epoxy resin. Providing ultra light weight and extreme tensile strength, it most often has a visible weave-like pattern. The weave pattern can be varied, as can the color of the epoxy used. Delrin® This lightweight and durable polymer was engineered for excellent long-term wear characteristics. It can be molded to form, and is used in many industries.