A great selection of cargo liners for 1999 GMC Jimmys cab be found here on our virtual shelves. They easily lay into place and line up with your GMC's cargo area edges for a fit that can't be beat. While they are a standard accessory, our customers have found these cargo mats to be of great value, outstanding quality, and incredibly easy maintenance. They also help trick out your 1999 GMC's style by coming in a variety of colors, styles, and brands. And, as always, we offer free shipping on everything on our site in addition to having amazing customer service.