I have an UnderCover on my 13' SuperCrew just like the one I had on my 02' Supercrew 12 years ago. Best thing I ever bought for my trucks.
Gained 1 mpg. Easy to take off. Keeps all rain out. Lockable storage. Several people can stand on it at once, makes it easy to clean and wax your cab roof. Cargo light incorporated inside. And fits like a glove.
2013 Tuxedo Black SuperCrew FX4, 3.5L EcoBoost,3.73's, Red FX 150 Emblems, FX4 Headrest Embroidery, Raptor Running Boards, UnderCover Bed Cover, Auto Ventshade Aeroskin Hood Shield & Door Sill Protectors, McGard Tailgate Lock, Dee Zee Tailgate Assist, Ford Rear Seat Storage, Ford Mud Flaps.Future Mods: F150Lifts Kit & BFG KO's 385 65/20.