Hubby wants me to knit him a Flat Cap , it's also called an English Driving Cap. But he wants it felted. He has a very large head , 24 1/2 inches where brim would rest. So I'd need to knit it large enough and then be able to felt it to fit him. I've spent hours looking online and the only thing that came close was a child's Newsboy Cap that is felted, only it's to small. Has anyone seen a pattern for what I am looking for?