The Bam Cello Case Ergonomic Backpack is designed for musicians who will be walking a lot. This is especially useful in big cities or college campuses where you're usually taking public transportation and walking.
The backpack is designed to distribute the weight evenly on your shoulders. The straps are padded for extra carrying comfort. So you don't have to worry about thin straps digging into your shoulders.
There's also a large padded sheet music pouch. The padding also provides extra comfort along your back.