I thought I would have some fun with a few lighter coloured felts. This one is a mustard yellow, 5% Beaver and 95% rabbit. It has a slight mark on the underside which is difficult to see when being worn, I have shown it in the last image. 
Crown is 11 cm, brim 7 cm and it has a blue grosgrain 38/15mm trim.
I can make this in other sizes if required, please get in touch