Whiting Dry Fly hackle sets the industry standard, and the Pro Grade provides excellent value for your fly tying dollar with enough hackle to tie at least 300 flies. Feather size is a range from 12 to 18, with predominantly sizes 14 and 16. Brown may be dyed if the natural is unavailable; other colors are natural unless specified as dyed. The new barred dark ginger color is an excellent substitute for hard-to-find cree.