Genuine Fur Felt Derby Hats Made in Canada Derby This is the Derby you’ve been looking for! Its 4 ½” Crown, and tight 2″ hand-made pencil-curl is the perfect shape and height. Using European Rabbit Furfelt, this hat has all the body in the world to hold its shape over time. Finished with a satin lining and smooth to the touch, If you are a Derby wearer, we promise this will be your new favourite