Fizik Arione Saddle, Tri Saddle + Seat Post
This is triathlon saddle (idea for Aero-position), plus an Aluminium Seat post.
About the Saddle, from Cycling Weekly:
"The Fizik Arione saddle is renowned across the cycling scene. It’s the first choice of the WorldTour pros and, as a testament to it’s quality, it’s also the first thing we swap on our test bikes when they come through the door. As a product, it’s made itself essential, and this gets it a spot on the Cycling Weekly Editor’s Choice for 2017."