Treat flies, yarn and even waterproofs boots.
Directions: Soak newly tied dry flies in solution for 5 minutes. Remove and let dry for a full 24 hours. Curing time is very important, as using the flies too soon will result in a reduction in its usefulness. Water repellent coating is permanent.
Keep away from children. If swallowed, do not induce vomiting. Consult a physician.