Will NOT fit with Trail Special Edition Bed Storage BoxesNOTE: Will fit with or without Deck Rail System3rd Brake Light Visibility For Short And Standard Beds Only, Drive With Cover In Closed/Folded Or Flipped Up Position, Weight Rated Up To 400 lbs. Of Evenly Distributed Weight, EPDM Outer Rail Seals For Maximum Water Resistance, Upgraded Latch Housing For Long-Term Durability, Fiberglass Reinforced Polymer Panel Top Skin, Advanced Impact Resistant Construction, Heavy-Duty Hardware And Components, Automatic Latching Panels, Premium Density Foam Core, Extended 3-Year Warranty, Locks With TailgateThe BAKFlip F1 hard folding truck bed cover comes equipped with an FRP (Fiberglass Reinforced Polymer) top surface, providing superior dent, ding and scratch resistance. The heavy-duty aluminum panels that line the underside give the cover its strength and durability. Together, these make the F1 our top of the line BAKFlip, offering a stylish and secure cover for the long haul. The F1s rugged