Ergon CF3 / Canyon VLCS 2.0 seatpost
I have seen it for sale on ebay and wonder if anyone has tried it out.
Seems a good way to plush out a harsh racebike.
http://www.ergon-bike.com/us/en/product/cf3procarbon
http://www.canyon.com/_en/shop/?category=F07&item=36180