Lubardy Laptop Backpack 17 Inch TSA Friendly Travel Backpack 。Lubardy Laptop Backpack 17.3 Inch Waterproof Travel Backpack in excellent condition, Lubardy Laptop Backpack 17.3 Inch Waterproof Travel Backpack for Men 40L with 3 Packing Cubes Lightweight Casual School Bag for Business Work Travel Hiking Black This laptop backpack is made of waterproof and durable polyester fabric with high-density nylon lining for better tear resistance, water resistance and durability. The high quality YKK zippers close and open smoothly, and the improved reinforced stitching makes it more durable. Lubardy backpack can be used as a laptop backpack, travel backpack, business backpack, college backpack.