Black distressed leather band with  vintage pin and feather slider.   Slider,pheasant and front feathers are  removable. Band ties in back to adjust to different hat sizes.  This is a band is 22.5" long and 1.5 " wide.  
This picture is on a Gigi Pip size S hat
 
Similar band/feathers can be made - the pin was a one of a kind and this one has been sold