Tonneau covers are a type of covers or lids that are fitted over the bed of trucks. They are designed to protect the cargo which is also known as the truck bed, from issues such as: bad weather, theft, and even damage. These tonneau covers come in a variety of styles, materials, and designs; although, their purpose is to provide protection to the cargo. Showcase Truck Accessories is one such good eCommerce company that sells tonneau covers online.