Made high-quality fabric that is waterproof and durable. Backpack's interior is well-organized compartments. Integrated compartment for your 15.6" laptop plus sleeve for your tablet. Also separate compartment for water bottle or umbrella. Lumbar padding doubles as a smuggler's pocket for small items of value. Secret document pocket on back. Very convenient accessories string for your sunglasses. USB charging port. 180° opening makes packing very comfortable. Pass through along the back panel easily slips over the handle of rolling luggage. Perfect for 3-5 days business trip. Ideal for school, studies, office, or travel, for men and women.