The first one I made is an adult large size. I made it for my son who is a den leader with the cub scouts. He found the pattern for the Owl hats online and ask if I could make it for him to wear at conferences....seems Owl is a leader thing. So I made him the large size but then thought maybe it was too big. Yesterday, I made the teen/adult size. So will get them mailed out and I'm sure that one will fit him and he will put the other one to use also.
Here is a photo of both of them. The smaller one, in front, fits me.