A double bass case is a protective container designed specifically for the storage and transportation of a double bass, a large string instrument used in various music genres. These cases are typically made from durable materials like wood, fiberglass, or padded fabric to safeguard the instrument from physical damage and environmental factors. Double bass cases come in two main types: hard cases and soft cases. Hard cases provide maximum protection with a rigid exterior, while soft cases are lighter and more portable, offering basic protection. Many cases also feature compartments for accessories such as bows and rosin, making them practical for musicians on the go.