UnderCover Swing Case 15-24 F150 (Includes Lightning) Driver Model SC203DUnderCover Swing Case 15 24 F150 (Includes Lightning) Driver Model SC203D SwingCase by UnderCover is the most innovative and versatile truck storage box ever made. Built to last from lightweight, high impact ABS plastic; the tough, weatherproof, SwingCase is custom fitted for your truck. The SwingCase is affordable, too. In fact, you can purchase two SwingCases for less than the price of an old fashioned truck bed box and save a lot of space, too.