1、Large Capacity Backpack: This backpack is suitable for storing 48‑120 bass accordion, with large storage space, and can also store and carry other equipment, suitable for stage performances and outdoor travel 2、Adjustable Straps: This accordion backpack features adjustable shoulder straps that can be adjusted according to different modes of transportation, and you can also adjust it according to your preferences 3、Reasonable Design: Comfortable carrying system that conforms to ergonomics, equipped with padded shoulder straps; There is additional zip pocket on the front for storing small accessories, convenient and practical 4、Multiple Parts: Dual way hardware zip for smoother pulling; PVP engineering plastic regulating ring, resistance to high temperature and oxidation; Triangular structure multi layer connect strap, secure and reliable 5、Cotton Fabric: This accordion backpack is made of excellent cotton fabric, with comfortable touch, wear resistance, preventing your accordion from being bumped or rubbed, and extending its lifespan