I just used a basic hat pattern using double crochet. You can find one here. http://www.headhuggers.org/patterns/cpatt03.htm Then i used the same to make the circle, just alternating the black and white.Hope this helps. I did 7 rows in red, two in black and I think 5 in white. You will have to adjust to your son's head. My son is ten and this hat fits him just right.