A suitcase is a type of travel bag that is designed to carry clothing, personal items, and other essentials for a trip. It typically features a rectangular shape and a hinged lid that opens to reveal a spacious interior. Suitcases come in various sizes, styles, and materials, and can be carried by hand or wheeled on the ground.

The history of the suitcase can be traced back to the 19th century, when people began to travel more frequently and needed a practical way to carry their belongings. The earliest suitcases were made of leather and were designed to be carried by hand or with a shoulder strap. They were heavy and cumbersome, and often required the assistance of a porter to transport them.

In the early 20th century, suitcases began to evolve with the introduction of new materials and features. Hard-sided suitcases made of metal or plastic became popular, as they offered greater durability and protection for fragile items. Suitcases also began to feature locks, interior pockets, and retractable handles, making them more convenient and user-friendly.