A guitar gig bag is a soft, padded case designed to protect and transport a guitar. Unlike hard cases, gig bags are lightweight and often feature adjustable straps, making them easy to carry like a backpack. They typically have extra pockets for storing accessories such as picks, tuners, and sheet music. Most gig bags are made from durable materials like nylon or polyester, providing a balance of protection and portability. They come in various sizes to fit different types of guitars, including acoustic guitars and electric guitars. This makes them a popular choice for musicians on the go.