WindTook Lightweight Laptop Backpack Up to15.6 inch Black High-Quality Material: Made of water repellent, tear-resistant and anti-scratch 1680D double-pile polyester for lasting durability. Multi-Compartment: 12.2"x 7.5" x 18.9" (L*W*H). Generous main compartments with padded sleeve for 15.6-inch laptops and several functional pockets allow you to keep all of your gear secure and organized in its place. Breathable carrying system, S-shape adjustable shoulder straps, High quality SBS zippers and buckles, Removable waist belt Comfort: The innovative weight balance design makes you feel 20%-25% less weight. The body side and shoulder straps have excellent thick breathable mesh padding, offering your back plenty of cushioned comfort. The backpack is perfect for day-to-day use or travel, school, fitness, hiking, business, cycling, etc.