Well, there's the rub. I haven't seen any in a while.

After a fair amount of Googling, I found this:

http://www.wesspur.com/rope/bulk-prusik-cord.html

I don't have any experience with the products on that page, but the Ultra Tech prusik cord with Technora core sounds similar.

Interestingly enough, they also have what appears to be braided Technora cord. Hmm.

-john