OEM Direct Replacement Part: Pre-assembled, direct-fit, and is installed within minutes. 
Premium Polycarbonate Makrolon Tuffak® I35 Dark Gray Tint: For a vibrant, high-clarity, iconic sky view, while also providing complete UV protection.

The rich, high-gloss FRP (Fiberglass Reinforced Polymer) top surface of the BakFlip F1 provides superior dent, ding and scratch resistance. Heavy-duty aluminum panels line the underside, giving the cover its strength and durability.

Interlocking aluminum slats lined with heavy duty vinyl
Slats, clamps, and vinyl are all matte black for the ultimate sleek appearance
Slats are capped to protect your hands and ensure easy use of the tonneau cover
The X4S side seals are flattened for a more streamlined look
Rotational locking rail system secures the cover when closed
The cover can be opened and locked in place with included buckle straps to haul large items
Built-in bulkhead seal protects your cargo from rain, snow, and other elements
Does not block access to stake hole pockets
With its matte-black finish, ease of use, and impressive security, The BAK Revolver X4S is one of the most elite hard rolling tonneau covers available for your truck. The X4S truck bed cover is made of interlocking aluminum slats, which are covered with a heavy-duty vinyl tarp to produce a smooth appearance and protect your cargo from the elements.

A hard folding truck bed cover that comes with overwhelming new features and is topped off with an alluring matte finish. The Ultra Flex is in a category of its own.