This is an ANY GAUGE pattern in which you can choose any yarn you wish. Do a swatch and determine the number of stitches in one inch and do the calculations indicated in the step by step instructions. The sizing is based on your own measurements which you will take with a tape measure and multiply by your gauge to get the exact number of stitches needed at the bottom of the raglan yoke. Yes, some math is involved but nothing your calculator can’t handle.