UnderCover Armor Flex 16-23 Tac 5' w/o Bedside Storage Boxes Model AX42014UnderCover Armor Flex 16 23 Tac 5' w o Bedside Storage Boxes Model AX42014 The new ArmorFlex hard folding cover is designed to protect your truck bed and its contents, while maintaining its strength, style and durability. Heavy duty panels are coated with a LINE X(R) specialty automotive coating designed to provide advanced protection from dents and scuffs, even in the most extreme environments. The dual action tailgate seal offers universal tailgate