Abstract: A headwear cover system includes a left receiver base and a right receiver base, each receiver base including a respective receiver adapted to provide an attachment point for an elongated cover support member. Each receiver base is also associated with a respective hat connector which allows the respective receiver base to be connected to the brim of a hat. The elongated cover support member has two connectors, each connector adapted to be releasably secured to a respective one of the receivers. A cover sheet is included in the system and is adapted to be secured along at least a portion of the length of the cover support member. The cover sheet hangs down from the cover support member to provide the desired covering function.