UnderCover Elite LX 19 (New Body Style)-23 Sierra 1500 6'7" w/ MultiPro Tailgate - GJI - Dark Sky Metallic Model UC1218L-GJIUnderCover Elite LX 19 (New Body Style) 23 Sierra 1500 6'7" w MultiPro Tailgate GJI Dark Sky Metallic Model UC1218L GJI The Elite LX is the newest cover from UnderCover. It comes standard with all the features from the UnderCover Elite. Weve added a premium carpet lined underside, topped with flawless paint to match to make the LX the sharpest tonneau on the market. Engineered to provide a precise fit and finish to your truck bed. Lightweight; ABS;