The Mountain Top retractable is made from strong, durable, lightweight aluminum. Our easy to use retractable tonneau cover adds style and appeal to your pickup. It also increases the practicality of your cargo area without limiting its versatility. With a high level of protection from the elements, your belongings are kept safe and dry inside the truck bed. All Mountain Top tonneau covers are equipped with built-in accessory tracks allowing for a fast and secure installation of the most common brands of truck bed cross bar systems. So, if you’re planning on taking extra gear like surf boards or mountain bikes with you, that’s not a problem either: You can easily install cargo racks in the built-in accessory tracks of the tonneau cover – and still have easy access to your truck bed.