1. Weight: 0.54KG2. Capacity: 29*46*16cm3. Fabric: Oxford cloth + polyester 4. Structure: main bag/secondary bag 5. Function: Waterproof, wear-resistant, anti-theft, and protect from light6. Use scenarios: students, tourism, business, business trips. Features: 1. Water-repellent Oxford cloth: stronger toughness and tear resistance; 2. S-shaped shoulder strap to protect the spine: S-shaped shoulder strap design, comfortable and convenient to carry, high-density foam, stable carrying weight; 3. Scientific layering, reasonable storage: front pocket + side pocket + computer compartment, large capacity to meet travel needs; 4. Well-designed, high-quality hardware: the bag is designed with triangular reinforcement, sturdy and durable; smooth double-ended zipper, smooth and non-smooth Stop; adjustable shoulder strap design, convenient and practical; 5 Creative design