A double bass case is a protective container designed specifically for transporting and storing a double bass, a large string instrument. These cases come in various materials, including wood, fiberglass, and soft fabric, each offering different levels of protection and portability. They often feature padding to safeguard the instrument from impacts and environmental factors. Many double bass cases include additional compartments for accessories, such as bows and rosin. Some cases are designed with wheels for easier transport, while others have backpack straps for carrying. Choosing the right case is essential for maintaining the instrument's condition and ensuring safe travel.