Trusted by anglers around the world, Fulling Mill Fullers Mud is an essential line treatment designed to eliminate surface shine and increase stealth on the water. Whether you're targeting picky trout in crystal-clear streams or fishing pressured tailwaters, this fine, clay-based formula helps your tippet and leader sink quickly, breaking surface tension and preventing line flash that could spook wary fish. Simply apply a small amount to your fingers, work it into your leader or tippet, and enjoy improved presentation with every cast. Fullers Mud is particularly effective for dry fly and nymph anglers who need precision and subtlety. Unlike grease-based products, it won't leave an oily film or residue, making it a favorite for situations where a natural drift is key. The eco-friendly formula comes in a compact, reusable container that fits easily into any vest, pack, or sling. If you're serious about upping your finesse game, this small tub of mud could be the edge you've been looking for.