Fiber Trends .. Made in the USA .. Knit Pattern Head sizes: 20 (21.5, 23) inches. Hat Yarn: light worsted or DK weight ..150( 175, 200) yards and contrast color will need 50(60, 70) yards. Needle size: 16" circulars US size 5 & 7 (3.75 & 4.5 mm) plus 1 set of Double Point Needles size 7 (4.5mm) Scarf Yarn requires about 170 yards Needle Size: US size 10 (6 mm)