The best-selling truck bed cover in the world now with built-in rack compatibility. Introducing the all-new BAKFlip® MX4 TS, available exclusively from RealTruck. This premium tonneau builds on everything enthusiasts love about the BAKFlip MX4—now with built-in rack compatibility via intuitive, built-in T-slot side rails, allowing fast, secure mounting of racks, carriers, tents, and other cargo accessories (sold separately). As you'd expect from BAK® Industries, the BAKFlip MX4 TS delivers premium quality and performance. Its all-aluminum construction features redesigned top panels with high-density polymer cores, offering a 22 percent increase in strength over the original MX4. Despite its strength, the BAKFlip MX4 TS maintains an ultra-low profile, sitting nearly flush with your truck's bed rails for a clean, streamlined appearance. The aluminum alloy is corrosion-resistant and protected by BAK's proprietary Multi-Shield™ matte black finish, delivering 11x more surface durability and supporting up to 400 pounds of evenly distributed weight on top. | RealTruck BAKFlip MX4 TS (GEN 3) Hard Folding Tonneau Cover w/ T-Slot Rails 449120TS