The present invention provides a child safety seat installed within a motor vehicle, including both upper portions of a harness web threaded through a pair of sleeves surrounding that portion of the web proximate a child's chest area. It is an object of this invention to eliminate the disadvantages of the harness webs, tangs and buckle, falling into the depression or concavity formed by the contours of the seat, interfering with placing a child within the seat. The upper portions of both webs are required to be connected laterally to offer protection against separation in the event of a sudden deceleration. The sleeves therefore include a latchable connector to selectively couple or uncouple one sleeve to another.