Travelers Polo & Racquet Club Flex-File 19 Inch Checkpoint Laptop Backpack, Black, One Size Exclusive patented detachable flex-file system designed for increased organization Lay-flat 15 inch laptop compartment that allows for TSA checkpoint-friendly travel Add-a-bag sleeve on the rear side to attach additional luggage Made of 1680 denier ballistic polyester, one of the strongest, most durable fabrics for soft side luggage 14.5" x 8" x 18.5