I bought these shoelaces for a pair of 14-hole Docs. They work fine for that purpose. They're nice and long, as you would expect them to be.
But these laces are not the ones that normally come with a pair of Demonia boots. Those laces are made of a polyester/cotton blend, I'm guessing, and they're round, thick and spongy to the touch. These, on the other hand, are much thinner and they're covered in a wax coating. They're like the laces that they sometimes put in men's dress shoes. The picture shows the difference between normal Demonia laces (top) and these laces (bottom).
Personally, I greatly prefer the thicker poly/cotton laces. They just look and feel better, and seem better suited for a pair of goth/combat boots. As I said, these laces do the job, but just make sure you know what you're getting before you buy them.
