Laptop Backpack: Fits brands for laptops such as Dell / HP / Toshiba / Lenovo / Acer/ Macbook Air/ Macbook Pro/ Ipad / Ipad Pro Fits College Students, Business People, Office Staff, Teens, Students, Outdoors etc. Specifications: Black and Gray 16.5 x 4.1 x 12.5 inches fits up to 15.6 inches laptop. 1.5 lb Simple and Stable Water Resistance Multi-Function Bag Features: This bag can be converted into backpack, shoulder bag and business bag, as you like. Very convenient to carry. Backpack Style: Comfortable back strap system, easy and convenient to carry on your back. Bag Style:One Back Pocket To Hide The Back Straps,when Used As Shoulder Bag. Messenger bag style: one back pocket to hide the back straps, when used as messenger bag. Waterproof design: 1. Excellent Waterproof - Soft to use and durable with waterproof function, you won't have to worry about raining suddenly during your journey. 2. Save laptop or tablet etc. Accessories pocket with interior pockets to hold items like 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 stuff. Two layers of strong shock resistant lining protect your laptop from exposure to impact. 5. Durable luggage strap is suitable for attaching the bag on your luggage luggage carriage.