Specification:Gender: UnisexMaterial: PolyesterLaptop size:15.4 inch:11''*7.1''*17.7'' ; 17.3 inch: 11.8''*7.9''*18.9'' ; 19 inch:12''*8''*20'' Color:BlackWeight: 1.76 pounds for general size;2.2 pounds for large & extra large size.Application: Business /College /Casual /Sport /Outdoor / Hiking / cycling.Feature:Comfortably carry your digital notebook anywhere you go with the 14"-17" Laptop Backpack.There are multiple compartments inside this notebook carrying backpack that allow for proper organization of your stuff. The exclusive 3/4 zip compartment in this laptop backpack can hold up to a 14"-17" widescreen portable PC. You can carry important office documents, magazines, files, newspapers, books and lots more in the expansive interior storage compartment.Attention:Every measurement is subject to errors because our instruments and our senses are imperfect.If there is any difference between color and instruc tion on the picture, please refer to actual condition.Warranty:Lifetime warrantyWe hope you will be pleased with both the product and service you received.If not,please contact us and give our helpful customer service team an opportunity to improve your experience right away,we are more than happy to help.Important Tips:The backpack not included Lock;USB cable;Power bank.