Gerber LMF II Survival Knife, Black [22-01629] Originally designed to free an aircrew from a downed aircraft Tough enough to cut through the fuselage of an aircraft Purposeful break between the tang and the butt cap, providing insulated protection against stray wires and absorbing any shock from hammering. Handle Material: Glass-filled nylon with TPV overmold Sheath Material: Ballistic nylon with fire retardant coating Made in USA