Spyderco Aqua Salt Rust Free Serrated Edge Knife A reliable fixed-blade knife designed specifically for use in and around the water Hollow-ground from H-1, an extraordinary steel that is totally impervious to rust Bright yellow injection-molded fiberglass-reinforced-nylon (FRN) handle with Bi-Directional Texturing for a positive grip Fully-serrated (SpyderEdge) cutting edge provides aggressive cutting power and exceptional edge retention Injection-molded FRN sheath with multi-position G-Clip hardware