An improved adjustable sun shield useable on the visor of a vehicle. The inventive sun shield provides significantly improved flexibility for placement of the shield so the shield may be selectively placed and located by a driver or passenger in a location that best blocks in-coming sunlight. Unlike prior art sun shields, which provide the user with limited options for placement (e.g., typically pivoting in single direction), the sun shield enables a user to position the shield at a plurality of locations and in a plurality of positions, thereby increasing the user's ability to block sunlight by placing the sun shield in the best location and position to accomplish this.