The Leek drop point blade is made of a patent pending composite steel with a spine of 14C28N fused with a cutting edge of CPM-D2. The blade design shows the interface of the two steels. The thing to consider is that, if the entire blade was made of this super steel, it would cost 2 or 3 times what this knife costs. By combining the steels this way, you get all the benefit of the D2 steel, at this fantastic price.