The Rainbows yarn set for the Mountain Musings MKAL by Lisa K. Ross.
You can find the pattern on her website: https://www.paperdaisycreations.com/shop/p/mountain-musings-mkal or Ravelry page: https://www.ravelry.
This yarn set includes two 400 yard skeins and seven 200 yard skeins of Ridley Sock.
Content - 80% superwash merino, 20% nylon
Gauge - 4" = 27-28 stitches on 2.25mm - 2.75mm needles
Care Instructions - Soak in cold water and lay flat to dry.