waterproof student backpack Material Type: Oxford Weight: 0.60KG Laptop Size: 15.6\" Inch compartments: 3 Capacity:18L Style: Leisure, waterproof student backpack Closure Type: Zipper Carrying System: Ergonomic Handle/Strap Type: Soft Handle Usage: Day Backpack Interior: Computer Interlayer Dimension information:29*42*19cm Feature: Multi-functional,High Quality Splashproof Waterproof USB Charging Lightweight Stylish look