Each top-zippered half of this double bag has two other large zippered compartments --one is inside for extra security -- so that you can safely carry all the devices, peripherals and accessories you are likely to need for a day's work or study. A convenient key pocket and an ID window are only two of many other features that are designed into this versatile bag, from coin pocket to pen loops to slots for credit or business cards. There's plenty of room for personal items as well (a hat or scarf will fit inside the folds).