Check your gauge ! If you are getting 6 stitches per inch, your hat will be 15 inches around (to small for an adult) If you are getting 5 stitches per inch, your hat will be 18 inches ... about right. If you are getting 4 stitches per inch ... it will be 22 inches ... TO BIG! (the part that fits on your head) Your friend is right, if you decrease the top a bit, it won't be quite so bulky when you tie it. Your ribbing is WONDERFUL!!!
I am DebbieKnits on Ravelery