A truck topper, also known as a truck cap or camper shell, is a cover that fits over the bed of a pickup truck. It provides additional storage space and protection for cargo from weather elements like rain and snow. Truck toppers come in various styles and materials, allowing users to choose one that best suits their needs. These accessories can enhance the functionality of a truck by creating a secure area for tools, camping gear, or other items. Some toppers even include windows and doors for easy access, making them popular among outdoor enthusiasts and tradespeople alike.