A truck cap, also known as a truck topper or camper shell, is a cover that fits over the bed of a pickup truck. It is designed to provide additional storage space and protection for cargo, keeping it safe from weather elements and theft. Truck caps come in various styles, materials, and colors to match different truck models and personal preferences. These caps can enhance the functionality of a truck by allowing for more versatile use, such as camping or transporting tools. Some truck caps are equipped with windows, doors, and interior lighting, making them suitable for outdoor activities or work purposes.