Patons Kroy Socks yoga socks. I used Kroy sock 4-ply yarn made of 75% wool and 25% nylon. First time I followed the instructions exactly as on pattern but the socks were too large for any of us to wear. Reduced the cast on to 56 stitches and for the heel opening I cast off 25 stitches. I did NOT increase where it was suggested. Much better fit. First pattern set I repeated 3x total; at the end I repeated pattern 3x ending with row 5 for a bit longer sock or row 1 for a bit shorter.