USA UK Friendship 3x5 Foot Polyester Flag by Vista Flags. $7.94. Light Weight, flys beautifully. In stock ships within one business day!. Polyester Fabric. Large 3 foot by 5 foot. Durable. This flag is made of light-weight polyester for durability. It is a large 3 foot by 5 foot flag, and has a reinforced hoist side, with 2 metal grommets.