Dry flies are artificial fishing lures designed to float on top of the water. They imitate adult flying insects, like mayflies or caddisflies, that fall onto the surface or hatch from underwater. This tempts fish to strike from below, mimicking a natural meal.They float because of their specific design:Stiff Feathers: They are tied with stiff, spiky feathers (called hackle) that act like little legs, keeping the hook above the surface tension.Buoyant Materials: They use materials like deer hair or foam that trap air and resist water.Water Repellents: Anglers often coat them with silicone floatant gels to help them stay dry all day.