Now, pin the bottom piece/earflaps around the bottom of the bucket you just made. The earflaps should start where the side piece starts, and wrap around to the back and other side piece.
The front will be bare for now.
Repeat all the same steps for the lining piece, then you’ll have two identical hats: the shell and the lining.
Pin them together, with the right sides together. Slip the front flap in the front. The front will be really thick, so make sure to sew slowly when you get to that point.
Sew all the way around, leaving an opening at the back.
Turn the hat and hand stitch the opening closed. Also, hand stitch the front flap to the hat, so it stays in place.