Today's yarn is 1100 yards of Rick Rack by Interlacements, hand-dyed, and 100% nylon. Their web site is https://interlacementsyarns.com/
It has a particular shine to it that catches light that brings out shades of color. It feels amazingly soft and silky and would make a very nice throw.
Here's Rick Rack after spending some time with Miss Swift and Mr. Winder.