A keyboard bag is used to protect a keyboard or synthesiser from damage during transport or storage. Keyboards are often delicate and expensive, so using a bag helps safeguard them against knocks, scratches, dust, and environmental elements like moisture. A good keyboard bag usually has padding to absorb shocks, reinforced seams to handle weight, and compartments for storing accessories like pedals, power supplies, cables, and sheet music.

Musicians, especially those who perform or travel frequently, find keyboard bags essential for ensuring their instruments remain in good condition. Bags with handles or wheels make carrying heavy keyboards easier and safer, reducing the risk of accidental drops or bumps. Additionally, a bag makes it more convenient to pack and carry the keyboard to gigs, rehearsals, studios, or lessons.