1. Material: waterproof Oxford cloth, 5mm pearl cotton 2. Scope of application: 40/41 inch guitar 3. Enlarged capacity front pocket design, can hold music score textbooks, etc. 4. No fear of rainy weather, easy to travel and carry 5. Thicker straps, comfortable and labor-saving, adjustable length 6. The side handle design is convenient for short-distance mobile use 7. Anti-wear rubber base to reduce the cushioning force of the guitar when it is placed in contact with the ground 8. Two-way zipper, durable 9. Weight: 700 grams 10. Size: 43x12.5x107 cm 11. Note: Only the backpack, not the guitar