You need 2 skeins of Catskill Merino Sheep Farm yarn of Fingering Weight. If you use 2 different colors, choose a color scheme that will split the colors evenly between the left and right sock, 1/2 color A and 1/2 of color B in one sock. The colors used to knit the socks are Tumeric, and Speckled Yellow and Green color. I used Tumeric color yarn at the toe and at the start of turning the heel. The socks are made with Elyse’s size 9 sock pattern which can be found in Lost Art of the Gusset sock ebook, available online in Amazon Kindle and Apple Bookstore..