BANGE BG-22201 Business Hard Shell Computer Bag Men Backpack Waterproof Luggage, Black, Silver White, Titanium1. Material: carbon fiber 2. Lining texture: polyester 3. Features: breathable, waterproof, and wear resistant 4. Size: 30x8x45 cm 5. Net weight: 1. 2 kg 6. USB charging interface design, convenient for charging 7. Good quality materials for hand held, more comfortable grip 8. Water repellent fabric, not afraid of rainy days 9. Release splash, splash water, safe and secure 10. Can be opened and closed 180 degrees, more convenient to take 11. EVA