1. Oxford cloth surface, water repellent, wear-resistant and scratch-resistant 2. Fluff inside, shock absorption and anti-fall 3. Multi-layer storage pocket, convenient to classify and carry personal belongings 4. Detachable shoulder strap design, single-shoulder/hand-held/cross-body multiple ways to carry 5. Can hold 15-15.6 inch laptop 6. External size: 44x33x8cm 7. Inside size: 39x29x7cm 8. Weight: about 800g