A camper shell, sometimes known as a topper or cap, is a small housing or rigid canopy used as a pickup truck accessory. The housing is usually made of fiberglass or aluminum, and is mounted atop the pickup truck's rear bed. It generally covers the entirety of the pickup truck bed, and is large enough to be used for camping purposes. Even though use for camping may have been its initial purpose, it now seems most often to be used for utility and storage purposes. Some camper shells are so large that they can overlap the top of the truck's cab. Image File history File links Metadata Size of this preview: 800 Ã 469 pixelsFull resolution (1627 Ã 954 pixel, file size: 339 KB, MIME type: image/jpeg) (All user names refer to en. ... Image File history File links Metadata Size of this preview: 800 Ã 469 pixelsFull resolution (1627 Ã 954 pixel, file size: 339 KB, MIME type: image/jpeg) (All user names refer to en. ... Mazda B-Series compact pickup truck with extended cabin and home-made wooden rack. ... Bundle of fiberglass Fiberglass (also called fibreglass and glass fibre) is material made from extremely fine fibers of glass. ... Aluminum is a soft and lightweight metal with a dull silvery appearance, due to a thin layer of oxidation that forms quickly when it is exposed to air. ... Car camping is camping in a tent, but nearby the car for easier access and for supply storage. ...