Totes are casual all-purpose bags which are smaller than carry-ons and come in a wide variety of shapes and sizes. Some are designed for travel and match a line of luggage; the simplest however, look like top-opening shopping bags made of fabric or leather. Other totes may feature zippered, water-proofed pockets, expandable bottoms and shoulders straps. These bags can be used every day, for carry on necessities or as day bags while traveling.