SOG Altair XR Folding Knife - The superlight Altair XR is is a compact folding knife that is filled with innovation. Equipped with CRYO 154CM steel and SOG's super strong XR locking mechanism and includes a concealed fastener handle design, skeletonized liners, and swappable lanyard loop and pocket clip that allows for easy carrying. Features Designed For Those Who Push The Boundaries -With SOG's patented XR Lock, Altair XR is an innovative, superlight, compact, and easy-carrying folder ready for exploring uncharted territory. Extremely Compact and Light Weight - Allows for easy carrying in the woods, at camp, or wherever the adventure unfolds. Ready To Go Fast and Far, Altair XR Is A Superlight, Modern and Capable Folding Knife - Equipped with CRYO 154CM steel, SOG's super strong XR locking mechanism, and a swappable lanyard loop and pocket clip. CRYO 154CM - CRYO 154CM is a mixture of high carbon, Chromium, and Molybdenum, which produces a stainless steel with excellent edge retention and high wear and corrosion resistance. Ambidextrous Carry -Swappable lanyard loop and pocket clip that allows for easy carrying options while in the woods. XR Lock - Reliable and powerful, able to withstand up to 1,500 pounds of force, provides the ultimate built-in blade locking security. Easy opening with either the XR lock or thumb stud.