WaterField bags do double duty-- they protect and transport your favorite laptop or tablet without looking too obvious, and they can also be used on their own. This comes in very handy when traveling where space is very limited. For example, the thin Indy discretely holds a tablet, yet makes for a very light travel accessory. The Muzetto's exterior pockets gives instant access to tickets, passports, keys, etc. The PiggyBack, usually used for laptop accessories and paired with a laptop SleeveCase, transforms to a cross-shoulder bag holding just a few essentials.