Product information:1. Large capacity, 17.3-inch laptop backpack. It can easily accommodate the items needed for 5-7 days business travel.2. Waterproof, use high-quality waterproof fabric, no longer afraid of light rain3. The foamed rear panel and shoulder straps increase comfort.4. Durable and waterproof, with scratch-resistant surface5. There is a thick laptop protective cover inside the main compartment6. The luggage strap is on the back, the luggage strap enables the backpack to be easily hung on the luggage trolley7. The external USB of the door can charge the phone at any time8. Anti-theft code lockSize: Type A: 17.3 inches