To create a truly unique experience and first for SOG....SOG started with one of the finest knives, The Arcitech. Then they procured a stunning Japanese san mai Damascus that uses a core of VG-10 and 15 layers of Nickel and stainless steel on the other side. The steel is forged and folded again and again to produce this striking pattern. Then finally the knife is acid etched to bring the pattern up clearly (carbon and nickel become black). Closed length: 4 1/2". Blade Length: 3 1/2". Razor Edge. Overall length: 8". Handle material: Carbon Fiber. Steel: San Mai VG-10 core; Laminated with 420J2 Stainless. Damascus Finish.