SOCKO Stylish Slim Water Resistant Business Laptop Backpack College Student School Bag Bookbag Casual Daypack Travel Camping Rucksack Back Pack Fits Up to 15.6 Inch Laptop/Notebook Computers,Black PROTECTIVE -- Built-in laptop and tablet PC sleeves of thick soft padding with velcro elastic fixed strap can protect your laptop,ipad very well from bumps,impacts,and scratches.A unique vertical access pocket is sepcially designed for your phone,wallet,cards,MP4... WATER RESISTANT -- Made of high quality water-resistant nylon materials with excellent sewing,that keeps your inside items still dry from splashing,even on rainy day on go. HIDDEN-TYPE ZIPPER -- Exterior zippers of main compartment are uniquely designed to be hidden-type,that not only looks much nicer,but also be anti-theft. COMFORTABLE -- This backpack is slim and very lightweight, Back & Shoulder Straps are soft padding and breathable,that you can carry in comfort for a long time. SIZES -- Exterior:47x34x15CM/18.5x13.4x5.9Inch, Laptop Sleeve:40x29CM/15.7x11.4Inch; Fits most up to 15.6 inch Laptops ( Apple Macbook / Acer / Asus / Dell / Fujitsu / Lenovo / HP / Samsung / Sony / Toshiba etc.),may not snugly fit all computers due to variations in the sizes of different models.