DTBG Nylon Versatile Convertile Spacious Business Casual Travel Laptop Menssenger Briefcase Computer Shoulder Hiking Bag Backpack Daypack For 15.6 - 17.3 Inch Laptop / Notebook/MacBook/Tablet,Black Huge Roomy: reasonable spacious multi-compartment design with various pockets for tablet,books,phone,wallet,pens etc Extremely Protective: the laptop compartment with velcro strap and thick soft foam padding provides extra protection,that effectively absorbs accidental bumps, reduces damages caused by impacts, and protects your computer from scratches. Very Comfortable: detachable single shoulder strap and Dual sturdy long handles for long-time comfortably carrying, and could fixed firmly on trolley case/suitcase with back belt. Easily Convertile:used as a backpack or easily converted to a shoulder bag when back shoulder straps are hiden in back compartment Bag Size: 50CM x 35CM x 15CM(19.7x13.8x5.9inch),Laptop Compartmen Size:45CM x 34CM x 5CM(17.7x13.4x2inch).Fits most 15.6 - 17.3 inch Laptop / Notebooks / MacBook / Ultrabook /Chromebook ( 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