Thermoplastic coated 210D nylon…

Has anyone a source for TPU nylon, ideally 210D? I’m wanting to extend the tail of an older packraft, but TPU nylon seems as rare as hens teeth! I’ve looked at DIYPackraft site, but they only sell scraps, and I’ve had a pretty wide search of the net.
Lots of PU nylon, but not TPU.
Andrew
Lots of PU nylon, but not TPU.
Andrew