This level lends a higher safeguard standard for valuables and comprises the majority of cover types, including hard rolling covers, hard folding covers, retractable covers, and heavy-duty covers. Most work in tandem with a locking tailgate, which, when locked, makes the truck bed more secure than the cab. Many older trucks and second generation Tacomas do not have locking tailgates, but the Pop & Lock keyed tailgate lock is an easy solution. Covers in this category either work with a pull latch under the cover, a keyed latch on top of the cover that may work independently of the tailgate, or consist of a multi-section lockable cover.
BAK Revolver X4 - The X4 features a matte black finish over aluminum slats. Its lock works via pull cord that is only accessible with an open tailgate.
BAKFlip G2 - Similar to the eMAX, this hard folding cover can only be opened with the pull cord, accessible through an open tailgate.
Gator Trax - This retractable cover works independently of the tailgate and instead opens with a lockable push button found on top of the cover.
DiamondBack HD - This heavy-duty tonneau cover is constructed of aluminum alloy and opens in two parts independent of the tailgate. Each part is lockable.