The Montana Fly Company Keller's Rocky Mountain Mint Fly is durable and easy to cast, making it a great choice for both beginner and experienced anglers. This fly's weighted head and marabou tail give it great action and movement, making it irresistible for trout in cold water. The purple, sparkly body, grizzly hackle, and well-proportioned tail make the Keller's Rocky Mountain Mint a fly that looks as great as it fishes.