The new Fallkniven A1 Pro is an updated version of the standard S1. It now has laminated cobalt steel (laminated CoS). It still sports a convex grind on a thicker blade (.275"). Each knife will ship in a waterproof box that can be used to secure your phone, gps, documents, or fire starting gear. Included in the waterproof box is the Fallkniven A1 knife, sheath, and DC4 sharpening stone.