The P.A.C.K. (Personal Army Combat Kit) 1520XL will hold 21.5 inches (546 mm) of Battle Foam Large (BFL) size foam trays (15.5W x 12L"). Its rugged black, Ballistic Nylon exterior protects a hard plastic and wood interior built for strength and durability. This bag design has wheels for easy transportation. A zipper lines the top of the bag, which allows you to attach other Battle Foam bags such as the P.A.C.K Plus, P.A.C.K 216 or P.A.C.K 720.  The P.A.C.K. 1520XL also has a molle system, which allows you to further customize it to fit your specific storage and transportation needs.