Dual shell rear window shelf in a motor vehicle

The double-shell hat tray in a motor vehicle comprises a stiffener/carrier bottom shell (11) and a decorative top shell (12), with a hollow (14) space between them, and is characterized by the following facts: a) the stiffener/carrier shell consist of a fiber fleece with its density varying from region to region; b) the lower-density regions (11b) are constituted as chambers which contain air and fibers, and serve as sound absorbing elements.