I dyed some fingering weight Superwash Merino and Nylon yarn in the colour from Day 16 of 2018's yarn Advent Calendar. It is called Don't Let me Down (named after the song by The Beatles) and it is a semi solid purple with red, purple, and black speckles.
If you're looking for yarn to pair with Don't Let me Down try: Eight Days a Week, Something, or Ticket to Ride - colours 13, 14, and 15 from the Advent Calendar.
80% Superwash Merino wool, 20% nylon
Although superwash wool is machine washable, for best results I recommend handwash cool, dry flat.
The cost is for one skein though multiples may be available - please select your quantity from the drop-down menu.