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Box Covers

  • For ultimate cargo protection, you can’t beat a rugged, hard tri-fold bed cover, like the UnderCover® Flex from RealTruck®. The premium truck bed cover offers a robust and secure hard-shell construction, easy-to-use folding design, low-profile aesthetic, and exceptional weather resistance, protecting your truck bed in all conditions. The UnderCover Flex Tonneau Cover features rigid yet lightweight aluminum panel construction for superior durability. These panels are impact, abrasion, and cut-resistant—they can even support up to 400 pounds when evenly distributed. UnderCover treats the Flex Tonneau Cover with a durable gloss-black coating for superior corrosion resistance and sleek styling. Accessing your truck’s cargo area is simple and quick—simply drop the tailgate, pull either of the cover’s release cables, and fold the cover onto itself toward the bulkhead. You can secure the cover in the ? open position with the integrated safety straps or fold it flush against the rear window, securing it with built-in prop rods for 100-percent bed access. When you’re finished loading or unloading, close the tonneau cover, fasten and lock the tailgate, and your cargo in the bed is safer than your cargo in the cab. Installing the UnderCover Flex is just as easy using UnderCover’s clamp-on mounting system. The UnderCover Flex is just as resistant to inclement weather as it is to theft. The tonneau cover’s EPDM rubber hinges, perimeter seals, and dual-action tailgate seal prevent moisture from seeping into the bed. Any water that slips past the side seals gets diverted through built-in water channels and out of integrated drain tubes, keeping your cargo dry. UnderCover is a RealTruck® brand. When you order this tonneau cover or any other UnderCover product from us, you’re dealing directly with the manufacturer. We back each UnderCover Flex Tonneau Cover with a limited 3-year warranty against manufacturing and material defects., Features: Premium hard-folding tonneau cover. Easy-to-use tri-fold design. Durable yet lightweight aluminum-skinned panels. Corrosion-resistant gloss-black textured finish. Flush, low-profile design. EPDM rubber hinges, perimeter seals, and dual-action tailgate seal. Integrated drain channels and tubes. Offers complete full bed access when folded flush against the cab. Simple no-drill installation. 400-lb. weight rating (evenly distributed). Limited 3-year warranty.
  • For ultimate cargo protection, you can’t beat a rugged, hard tri-fold bed cover, like the UnderCover® Flex from RealTruck®. The premium truck bed cover offers a robust and secure hard-shell construction, easy-to-use folding design, low-profile aesthetic, and exceptional weather resistance, protecting your truck bed in all conditions. The UnderCover Flex Tonneau Cover features rigid yet lightweight aluminum panel construction for superior durability. These panels are impact, abrasion, and cut-resistant—they can even support up to 400 pounds when evenly distributed. UnderCover treats the Flex Tonneau Cover with a durable gloss-black coating for superior corrosion resistance and sleek styling. Accessing your truck’s cargo area is simple and quick—simply drop the tailgate, pull either of the cover’s release cables, and fold the cover onto itself toward the bulkhead. You can secure the cover in the ? open position with the integrated safety straps or fold it flush against the rear window, securing it with built-in prop rods for 100-percent bed access. When you’re finished loading or unloading, close the tonneau cover, fasten and lock the tailgate, and your cargo in the bed is safer than your cargo in the cab. Installing the UnderCover Flex is just as easy using UnderCover’s clamp-on mounting system. The UnderCover Flex is just as resistant to inclement weather as it is to theft. The tonneau cover’s EPDM rubber hinges, perimeter seals, and dual-action tailgate seal prevent moisture from seeping into the bed. Any water that slips past the side seals gets diverted through built-in water channels and out of integrated drain tubes, keeping your cargo dry. UnderCover is a RealTruck® brand. When you order this tonneau cover or any other UnderCover product from us, you’re dealing directly with the manufacturer. We back each UnderCover Flex Tonneau Cover with a limited 3-year warranty against manufacturing and material defects., Features: Premium hard-folding tonneau cover. Easy-to-use tri-fold design. Durable yet lightweight aluminum-skinned panels. Corrosion-resistant gloss-black textured finish. Flush, low-profile design. EPDM rubber hinges, perimeter seals, and dual-action tailgate seal. Integrated drain channels and tubes. Offers complete full bed access when folded flush against the cab. Simple no-drill installation. 400-lb. weight rating (evenly distributed). Limited 3-year warranty.
  • The Ultra Flex Tonneau Cover from UnderCover® and RealTruck® resides in a league of its own. The premium, hard folding truck bed cover offers an overwhelming feature list. From the irresistible outward appearance to each component beneath the cover, the carefully crafted Ultra Flex is the ultimate all-purpose truck bed cover. This high-end, hard-folding tonneau cover is manufactured from only the best materials, including matte-black-coated aluminum top panels and L-Rails. The rigid yet lightweight aluminum panel construction can withstand up to 400 pounds of evenly distributed weight. This truck bed cover is also highly durable and theft-proof—with the tailgate locked, your cargo in the bed is safer than if it were in the cab. The UnderCover Ultra Flex Tonneau Cover is as resistant to inclement weather as it is to theft. UnderCover utilizes a sleek, low-profile design with automatic slam latches, pressing the cover tightly against the integrated EPDM rubber perimeter seals and dual-action tailgate seal to keep water out. Operating the UnderCover Ultra Flex Tonneau Cover is quick and easy. To release the cover, drop the tailgate, pull the latches near the rear of the bed, and fold it toward the bulkhead. You can either secure the cover in the ? open position using the integrated safety straps or fold it flat against the rear window and support it upright with the built-in prop rods, offering full bed access. Closing the cover is just as easy—simply fold it back toward the tailgate as the cover’s innovative slam latches automatically engage, locking each panel into the redesigned L-Rails. The cover’s dual-action tailgate seal allows you to operate the tailgate whether the tonneau cover is opened or closed. UnderCover is a RealTruck brand. When you order this tonneau cover or any other UnderCover product from us, you’re dealing directly with the manufacturer. We back each UnderCover Ultra Flex Tonneau Cover with a 5-year warranty against manufacturing and material defects., Features: Premium hard-folding tonneau cover. Easy-to-use tri-fold design. Durable yet lightweight aluminum-skinned panels. Alluring matte-black smooth finish. Flush, low-profile design. Carpeted under panels. Integrated prop rods allow full bed access while driving. EPDM rubber hinges, perimeter seals, and dual-action tailgate seal. Integrated drain channels and tubes. Simple no-drill installation with clamp-on L-Rail system. Automatic slam latches. 400-lb. weight capacity (evenly-distributed). 5-year warranty.
  • The Ultra Flex Tonneau Cover from UnderCover® and RealTruck® resides in a league of its own. The premium, hard folding truck bed cover offers an overwhelming feature list. From the irresistible outward appearance to each component beneath the cover, the carefully crafted Ultra Flex is the ultimate all-purpose truck bed cover. This high-end, hard-folding tonneau cover is manufactured from only the best materials, including matte-black-coated aluminum top panels and L-Rails. The rigid yet lightweight aluminum panel construction can withstand up to 400 pounds of evenly distributed weight. This truck bed cover is also highly durable and theft-proof—with the tailgate locked, your cargo in the bed is safer than if it were in the cab. The UnderCover Ultra Flex Tonneau Cover is as resistant to inclement weather as it is to theft. UnderCover utilizes a sleek, low-profile design with automatic slam latches, pressing the cover tightly against the integrated EPDM rubber perimeter seals and dual-action tailgate seal to keep water out. Operating the UnderCover Ultra Flex Tonneau Cover is quick and easy. To release the cover, drop the tailgate, pull the latches near the rear of the bed, and fold it toward the bulkhead. You can either secure the cover in the ? open position using the integrated safety straps or fold it flat against the rear window and support it upright with the built-in prop rods, offering full bed access. Closing the cover is just as easy—simply fold it back toward the tailgate as the cover’s innovative slam latches automatically engage, locking each panel into the redesigned L-Rails. The cover’s dual-action tailgate seal allows you to operate the tailgate whether the tonneau cover is opened or closed. UnderCover is a RealTruck brand. When you order this tonneau cover or any other UnderCover product from us, you’re dealing directly with the manufacturer. We back each UnderCover Ultra Flex Tonneau Cover with a 5-year warranty against manufacturing and material defects., Features: Premium hard-folding tonneau cover. Easy-to-use tri-fold design. Durable yet lightweight aluminum-skinned panels. Alluring matte-black smooth finish. Flush, low-profile design. Carpeted under panels. Integrated prop rods allow full bed access while driving. EPDM rubber hinges, perimeter seals, and dual-action tailgate seal. Integrated drain channels and tubes. Simple no-drill installation with clamp-on L-Rail system. Automatic slam latches. 400-lb. weight capacity (evenly-distributed). 5-year warranty.
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