Step 4: Making the pattern larger.
*Seam allowances are included, so don't worry about those!*
Measure your head around right above the ears and from middle scalp to shoulder. Once you have these measurements, figure out the difference for each compared to mine.
If you only need to increase CIRCUMFERENCE, FOLLOW THE PURPLE LINE:
add to the front of the hat, as shown below. Simply take a ruler, measure how ever many inches from the front line, and draw. Increase the size of the bottom flap as well. :)
If you need to increase CIRCUMFERENCE and LENGTH, FOLLOW THE GREEN LINE:
add to the back part as shown below. Measure up from the top left corner, and continue adding how ever many inches all the way around.
If you need to increase LENGTH, FOLLOW THE ORANGE LINE:
add to the bottom of the hat only, increase the size of the front flap as well. :)
Easy peasy. :)