TAC 2015-2017 Ford F150 5.5'' Bed Tonneau Cover Tri-Fold Attention: Please check with dealer to confirm the right size of your truck's bed before ordering Tri-folding (soft) design Aluminum structure for durability and improve fuel mileage Twist clamp design provides tension and security for cover 2015-2016 ford f150 5.5' (66 inch) bed