Yeah white durabuck has yet to be replicated as far as I know.
you are correct it has not been replicated as of yet. the original company that made the material went out of business their patents expired and nothing has happened since the early 2000's , the 2000 retros were the last of the shoes produced in real Durabuck. it may not be a big deal to some but for me, these shoes along with the 4's and 6's were originally designed By Tinker to be constructed out of Durabuck. so to me its literally the biggest detail that has been lost and we won't get back until another company reproduces this material.