The BAKFlip F1 is a hard folding tonneau cover from BAK Industries, made in truck-specific versions for full-size and mid-size pickups. Each version is cut for one bed length, and on some trucks for one bed option, such as RamBox or the multifunction tailgate on Ram, the Deck Rail System on Toyota, or beds without Ford's Cargo Management System or GMC's CarbonPro bed. Every version carries textured FRP top skins over a high-density foam core, a 400 lb rating (evenly distributed) and BAK's 5-year limited warranty, and most clamp on with no drilling into the bed rails.