The size of the hat in this pattern is pretty universal and has fit most people so far. If you need a larger pattern, rather than increasing the hook size, it’s recommended that you continue to increase to 96 stitches and then repeat for a total of 16 blue rounds and then do 3 white rounds. Also increase the ribbed brim to 12 stitches instead of 10. To keep the dimensions for the flag accurate, increase the hook size to I when making the “C”.