Waterproof material: Crafted from crackresistant Oxford cloth for durable wear resistance and longlasting protection. The material is waterproof and easy to maintain, helping guard the instrument against the elements. Advanced instrument security: Waterproof and dustproof design protects the accordion from moisture and dust. A density thickened cotton lining cushions the instrument to absorb shocks and prevent bumps and damage. Prevents shoulder fatigue: Ergonomic design with wide, breathable shoulder straps distributes weight evenly, reducing strain and keeping you comfortable after hours of carrying. Improved organization: Multiple external pockets maximize storage space for sheet music and accessories, making items easy to locate and access quickly. Practical use scenarios Rehearsals and performances: Transport the accordion, sheet music, and small accessories together in one case, with organized pockets for quick access between songs and gear checks. Travel and daily commute: Waterproof construction and ergonomic straps support long walks or transit between venues, helping to protect contents and reduce fatigue throughout the day. Outdoor gigs and studio sessions: Securely store sheet music and essentials in external pockets while the cushioned interior minimizes impact during transport between locations.