Lenovo ThinkPad 15.6'' Active Backpack (4X40L45611) Product Type: Carrying Case Color: Black Maximum Screen Size Supported: 15.6" Limited Warranty: Lifetime Material: Ripstop Nylon Made with super lightweight, water-resistant and tear-resistant nylon, this backpack has plenty of storage for your travel essentials, laptop and even a smaller secondary device Composed of weather-resistant and tear-resistant Ripstop nylon Two side pockets for water bottles and zip storage pockets