Abstract: A zipper closure operator for opening and closing zipper closures located at the backs of garments. A zipper actuating member is attached to a string which may be grasped by the user. The actuating member has an inclined slot to receive and hold the zipper operating tab. The actuating member also has a triangular lug engageable between the teeth of the zipper to act as a guard to prevent the fabric of the garment from becoming enmeshed with the zipper teeth when the zipper is being closed by upward movement of the actuating member. The slot has a cross sectional shape adapted to receive an irregularly contoured zipper operating tab.