These sizes are approximate and may require some tweaking on your part for the perfect fit. My suggestion is to knit several swatches, see which material you like best, and proceed from there. This pattern includes options for sizes XS to XL. It is a bottom up sweater worked with a crochet cast on and in the round, until you split for the sleeves. You will need two colors, Color A and Color B. Buy an appropriate number of skeins to yield correct yardage: XS 800, S 850, M 1050, L 1400, XL 1500 yards total. Color A: XS 300, S 300, M 400, L 500, XL 500 yards. Color B: XS 500, S 550, M 750, L 900, XL 1000 yards.

Materials
Yarn: color A, color B
Scissors
Yarn needle
Measuring tape