The Brown Bivisible is a classic dry fly pattern used in fly fishing. It is recognized for its distinctive appearance, featuring a two-toned coloration with a brown body and a contrasting, often white, wing. The name “Bivisible” suggests that the fly is visible both above and below the water’s surface. This pattern is designed to imitate various insects and can be effective for enticing trout. The contrast in colors aids in the fly’s visibility, making it easier for anglers to track and detect strikes on the water.