There are a few notations that may help with resizing of this hat for larger or smaller.

I did not use a full skein of green, I had quite a bit left and it wasn’t full when I started.

The brim is a little flippy floppy, but I did it that way on purpose because it made it look a little girly, which was my goal.

I have added an infant sized hat as well and that one has a less floppy brim.