UnderCover Ultra Flex Hard-Folding Tonneau Cover

Low-profile design. Rugged protection. Full‑bed versatility.

The Ultra Flex is a premium, hard-folding tonneau cover built to deliver serious protection with clean aesthetics. It combines sturdy materials, thoughtful engineering, and seamless operation, all without compromising your truck’s appearance.

Key Features

• Aluminum-skinned panels. Lightweight yet sturdy, the matte-black coated aluminum top resists dents and maintains shape under pressure. Designed to support up to 400 lb evenly distributed.
• Carpeted under panels. Interior surfaces are finished with durable carpeting to protect tools and cargo from scratches and rattles.
• Automatic slam latches. Simply fold panels into place, the slam latch catches securely to the redesigned L-rail system, making operation quick and effortless.
• Built-in prop rods. Securely prop the cover upright for full-bed access, even while driving. No fuss, no tools.
• Dual-action tailgate seal. Whether your tailgate is open or closed, the seal locks tight to prevent water intrusion. Closing is smooth, without lifting the final panel.
• Weather-resistant system. EPDM rubber seals and hinge design block the elements; integrated drain tubes redirect water away from the bed.
• Flush, low-profile look. Clamps onto factory rails with a no-drill L-Rail system. Once installed, the tonneau cover blends smoothly with the truck’s factory lines.

What’s Included

1. Ultra Flex hard folding tonneau cover;
2. L-Rails, clamps, and installation hardware;
3. Integrated prop rods and slam latch mechanisms;
4. Installation guide (no drilling required).

Installation & Usage

Clamp-on installation takes under one hour. Pull the release latches, fold and stack panels for partial access, or prop upright against the cab for full-bed use. To close, fold the panels back and let the slam latches lock them into place. Operates smoothly with or without the tailgate closed.

Why Choose Ultra Flex

• Combines sleek styling with heavy-duty protection;
• Aluminum panels rated for 400 lb capacity;
• Carpet-lined underside protects gear and reduces noise;
• Quick tri-fold operation with slam latches and prop rods;
• Weatherproof seals and a built-in drain system;
• No-drill installation with durable, flush fit;
• Backed by a 5-year warranty on structure, seals, hinges, and hardware;
• Assembled in the USA with quality and precision.

The UnderCover Ultra Flex truck bed cover is a refined solution, balancing form, function, and durability in one sleek package.