Cold Steel's Secret Edge neck knife is rail thin, feather light, and flat like a pancake. It’s so slim it virtually disappears under clothing and at 3.2 ounces (including sheath) is a joy to wear without causing neck fatigue. Made from AUS 8A stainless steel and state of the art heat treatment. Faux G-10 handle scales. Secure Ex® sheath (specially designed to snugly retain the knife while allowing a speedy draw stroke. Flat ground blade that’s wide at the base for cutting power and narrow at the tip to assure effortless penetration.