You don’t always need a completely invisible line, and some anglers (and their guides) prefer a line that’s easy to see. Visibility helps with loop control when casting and makes it easier to locate your fly when it’s underwater. The line fades from stronger blue color in the center to a light blue tint on the outer edges, making the line easy to see from above, while providing a subtle, blurry profile when viewed by a fish from below the surface. The Sky Blue Liquid Crystal is the perfect compromise, offering a line that’s nearly invisible to the fish but easily seen by anglers and their guides.