Leisure Arts Hats For The Family Quick & Easy Roll Brim Hat Knit ePattern- Knitting your next hat couldn't be faster or easier. The size 5 bulky weight yarn and US 8 knitting needles will have you zipping through this project in no time. Finished circumference measures approximately 20 1/2". Easy+ skill level. Includes instructions and diagrams for learning how to: knit in the round with circular or double pointed needles, picking up stitches, weaving seams, and more. PDF download.