Flyway Insulator 20 oz.Built for the predawn boat rides and the long waits in the marsh, the 20 oz Flyway Insulator is designed to keep your focus on the birds, not your coffee. Whether youre cutting through a frozen lake or hunkered down in the blind, this tumbler provides the rugged reliability required for a successful day in the field. Finished in a durable, non reflective matte black, its built to stay stealthy and survive the inevitable bumps and drops of a morning in