A golfer typically transports golf clubs in a golf bag. Modern golf bags are made of nylon, canvas and/or leather, with plastic or metal reinforcement and framing, but historically bags have been made from other materials. Golf bags have several pockets designed for carrying various equipment and supplies required over the course of a round of golf. Virtually all bags are sectioned off with rigid supports at the top opening, both for rigidity and to separate clubs of various types for easier selection. More expensive bags have sleeves or pockets within the main compartment for each individual club, allowing for the desired club to be more easily removed from the bag and then returned without interference from the grips of the other clubs or internal hardware of the bag.
Carry bags are generally designed to be carried by the player while on the course; they have single or dual shoulder straps, and are generally of lightweight construction to reduce the burden on the player or caddy.
Sunday bags are commonly advertised as "minimalist" carry bags; they have very light weight and flexible construction allowing the bag to be rolled up or folded for storage without clubs, and have storage pockets for the essentials of play (clubs, balls, tees) but often lack more advanced features like segregated club storage, insulated pockets for drinks, stand legs etc.
Stand bags are in the family of carry bags but additionally feature rigid internal reinforcement and retractable fold-out legs, which make the bag a tripod allowing it to be securely placed on the turf. Modern carry bags are very commonly stand bags even at low pricepoints.
Cart bags are generally designed to be harnessed to a two-wheeled pull cart or a motorized golf cart during play of a round. They often have only a rudimentary carry strap or handle for loading and transporting the bag, and no stand legs, but may feature extra storage or more durable construction, as weight of the loaded bag is a lesser concern.
Staff bags are the largest class of golf bags, and are generally seen carried by caddies or other assistants to professional or high-level amateur players. Staff bags are generally the same size or larger than a cart bag, and typically feature a single shoulder strap, a large amount of storage for equipment and even spare attire, and large logo branding designed for product placement on televised events.
Travel bags are available with many combinations of size and features, but are distinguished by rigid and/or heavily padded construction, including the clubhead cover (which on most other bags is simply an unpadded "rain fly"), and locks on the zippers and bag cover. These features protect the clubs from abuse and theft, and generally makes the bag suitable for checked airline luggage. Travel bags are generally used by amateur players that travel occasionally, such as business executives; rigid flight cases that enclose the actual golf bag are generally preferred by touring players, as these cases can enclose any golf bag, are more discreet as to their contents thus further deterring theft, and the case's weight and bulk can be left behind while on the course where it's not needed.