Tough polycarbonate and TPU over-mold Additional corner protection Snap-in installation 1-piece design works provides all around protection Slits for airflow ventilation Asset tag window for easy identification Rubberized feet for improved grip Weight: 0.78 lbs Dimensions: 12.38' x 8.25' x 1.13' (W x H x D) Laptop Compartment: 11.94' x 8.11' (W x H)