15 inch Multifunctional Waterproof Business Sports Laptop Backpack with USB Port(Black)

Features:1. Made of PVC encrypted polyester fabric, waterproof and wear-resistant2. The trolley case fixing strap design on the back makes traveling more convenient3. Back air circulation and diversion design, comfortable and breathable4. Side USB interface design makes charging more convenient5. Adjustable shoulder strap, easier to carry6. Metal double zipper design, smooth and durable7. Widened handle design, comfortable and not tight8. Diamond facet structure design, three-dimensional and stylish9. Reflective strip design, safe and secureProduct parameters:1. Material: Oxford cloth, polyester2. Computer size: 15-inch model: 16 inches, 17-inch model: 17 inches3. Function: breathable, anti-theft, burden reduction, large capacity4. Product size: 15-inch model: 44 x 30 x 15 cm, 17-inch model: 47 x 32 x 15 cm5. Weight: 15-inch model: 860 grams, 17-inch model: 900 grams6. Note: Only backpacks will be shipped, nothing else!Specification: General Compatible with Apple:  Macbook Pro Retina 15 inch HP: