The Camillus Les Stroud SK Jungle Survival 18" Machete has a Carbonitride Titanium treated 440 Stainless Steel blade with a Rubber and Stainless Steel handle. 440 is a stainless steel with a terrific balance between hardness and corrosion resistance. 440 takes a nice edge and is fairly easy to resharpen. An excellent value-priced steel for its performance. Good toughness and stain resistance. Included is a Ballistic Nylon Sheath, Ballistic nylon is a thick, tough, synthetic nylon fabric that protects against debris and other foreign materials. It is commonly used for making sheaths. Carbonitride Titanium is one of the hardest surface treatments containing titanium. Harder than carbide. Harder than chrome. Our proprietary process creates a permanent molecular bond with the blade surface. Will not flake, blister, chip, or peel. A complex crystalline structure forms which protects the blade surface against wear, staining, and damage. Patent pending technology.