Laptop Backpack: fits laptop brands such as Dell / HP / Toshiba / Lenovo / Acer / MacBook Air / MacBook Pro / iPad / iPad Pro fits college students, business people, office staff, teens, students, outdoor and so on. Specifications: black and gray 16.5 x 4.1 x 12.5 inches Fits up to 15.6 inch laptop. 0.65kg Simple and stable water resistance Multifunctional bag Features: this bag can be converted into a backpack, shoulder bag and work bag, according to your preference. Very convenient to carry. Backpack style: comfortable back strap system, easy and comfortable to carry on your back. Shoulder bag style: one back pocket to hide the back straps, when used as a shoulder bag. Messenger bag style: one back pocket to hide the back straps, when used as a messenger bag. Waterproof design:1. EXCELLENT WATERPROOF - Soft to use and durable with waterproof function, you will not worry about it suddenly rains during your trip. 2. Save laptop or tablet etc. Accessory compartment with inner pockets for keeping items such as power cord, mouse, keys, passport, phones etc. 3. Three front pockets with zipper design. Suitable for holding pens, power bank, phones, etc. 4. Safe for your items. Two layers of strong shockproof padding protect your laptop from being shocked. 5. The durable luggage strap is convenient to fix the bag on the luggage trolley.