hese leg warmers are made of 100% acrylic yarn. Perfect for Pilates or Yoga classes. Can be substituted by wool or wool blend. You will need 4 skeins of different colors. You can substitute any color by any other one, according to your color preferences. Offered 3 color combinations, the rest is your imagination. Can be turned upside down, wear them any way you like more. The pattern is made for Medium size: 23” long, 13” wide (Circumference of calf, widest part), 137 stitches. You can adjust the size of these leg warmers to small or Large, using the chart in the tutorial. Enjoy!