PolyKnit - Knitted Polyester, is a lightweight material that allows wind to pass thru it. These flags usually last as long, or longer than nylon. This material has bright colors, very strong, excellent for wet and windy conditions, repels water, and dries very quickly. The flags are finished with canvas header and brass grommets. This Polyknit is imported, but remains a long lasting durable flag at an exceptional price.