The Missouri state flag is available at United States Flag Store in either nylon or polyester material. Sizes ranging from 4" x 6" to 5' x 8' are in stock. For solid value, choose the printed polyester flags--while they don't have the same level of durability as other fabrics, they do have the best flyability. Superknit polyester Missouri state flags are also very flyable and a lot more durable, and heavy-duty polyester flags are extremely durable. Outdoor nylon Missouri state flags by Valley Forge can be displayed outdoors or indoors and boast strong durability. The nylon flags are reinforced with a canvas heading and two brass grommets.