Ra-Starry Night knits up in just a few short hours, and the all-over star stitch pattern is beautifully defined with one-ply super bulky yarn. This hat is sized for Adult Small, Medium, and Large, and uses 90-120 yards of super bulky yarn. I used Malabrigo Rasta in Pearl 10 and Boreal for mine. When using two colors, you will need 50-65 yds MC and 40-55 yds CC. Gauge: 8 stitches = 4" in star stitch pattern on US 17/12.0 mm.