The Trifecta E-Series is a soft folding truck bed cover topped with a durable vinyl material. Its lightweight aluminum frame and Extang engineered heavy-duty support bows span the width of the truck bed for added durability. For ease of use and to keep tension to the truck bed, the Trifecta E-Series is engineered with intuitive, spring-loaded tailgate clamps. Drive with the Trifecta E-Series in either the closed or the fully open position.