SOG Knives SOG14030257: A compact daily carry folding knife with a 2.62-inch blade made from dependable Cryo D2 steel, Stout FLK is a framelock pocket knife that opens with a kick. Featuring a rugged G10 and stainless steel handle, Stout FLK is a collaborative design effort between knife designer Mikkel Willumsen and SOG founder Spencer Frazer.