SOG Knives & Tools Trident FX, 4.2 Fixed Blade Knife, Tanto Point Straight Edge, Glass Reinforced Nylon Handle, Cryo 4116 Steel, Titanium Nitride Finish, Black, Includes Nylon Sheath SOG-17-12-01-57 Built in the tradition of SOG's hard-use fixed blade knives for professional users" Trident FX pushes the boundaries on capability" but not on weight. At just over 4 ounces" Trident FX is a measured mix of strength and agility that allows you to move fast when it matters most. It comes with a modernized sheath that allows you to carry it how and where you need it.