Petitjean CDC Oil — A Protective Barrier for Your Flies Petitjean CDC Oil is a simple treatment that does one job well. Used as a protecting "barrier" cream, a single drop on the body of your fly shields it from fish slime, helping your patterns stay clean and effective through more of the day. It is built for the water. The oil comes in a small bottle that attaches to your vest, so it is there when you need it and out of the way when you do not. An easy, low-effort addition to any angler's kit. Key Features Acts as a protective barrier on the body of your flies A single drop shields the fly from fish slime Small bottle attaches directly to your vest Convenient, streamside fly care Specifications Type Fly treatment oil Use Protective barrier against fish slime Application One drop on the fly body Bottle Small, vest-attachable Made in Switzerland