Orvis Clearwater Type III Sinking Fly Fishing Line - The Clearwater Type III Sink fly line combines impressive performance with exceptional value. The Clearwater Type III Sink fly line is a great value option to get flies down under the surface and into the strike zone with a 2.5-4 ips sink rate. Good for all types of water, from lakes and ponds to deeper rivers. Front welded loop and a braided multifilament core for cold to moderate water temps.