Cul de Canard or CDC is naturally waterproof and buoyant feather taken from the butt of the duck, where the duck gets its oil from to help it remainwater proof. Natures Spirit CDC is some of the finest CDC around, making it an amazing product for tying soft hackles, cripples, and emerger patterns because it traps bubbles. It works great as parachute posts, wings, and hi vis indicatoron on hair wing flies.

Soft Hackle

Cripple

Emerger

Parachute Post

Wings

Hi Vis Indicator