Anti Theft Laptop Backpack - This backpack has anti theft design where zipper of the main pocket is hidden at the back. No thief, intruder or robber can find a way to open the backpack, making this totally theft proof. There are secret pockets on the shoulder strap and on the sides of the bag allowing us to keep travel documents, boarding pass, credit cards, mobile phone, earphones etc. This backpack is ideal for indoor & outdoor activities, business, camping, shopping, vacation, travel, school. USB Charging of Electronic Devices - It has an external USB port with built-in charging cable offers a convenient charging of your electronic device anywhere. This bag does not include a battery and you need a power bank to charge your mobile phone, tablet or speaker. There is a retro reflective tape on the front of the bag, which makes this backpack more conspicuous in the night. This is a safe backpack while walking, travelling or biking during the night. Water Resistant Oxford Fabric - This sturdy bag is made with 300D fabric, which is waterproof, cut-proof and dust-proof polyester. In addition the PVC fabric has a nylon sponge, which protects your belongings during rain season. It has metal zippers, breathable mesh shoulder straps and 6-layers of breathable mesh back padding. It is durable, lightweight and comfortable. Laptop Sleeve & Multiple Compartments - The bag has an adjustable main compartment (90° or 180°) that is equipped with space for 15.6 Inch laptop and medium space for tablet computer or iPad. In addition there are multiple compartments that are suitable for keeping pens, mobile phone, calculator, mp3 player, wallet, passport, iPod, power bank, notebooks, keys, watch, headphones, clothes, umbrella, water bottle and many other items. 180° opening like a suitcase helps in organising stuff easily. Padding, Cushioning & Ergonomic Design - The shoulder straps have plenty of padding & cushioning. It also has 3D breathable sponge padding cushioning on the back side of the bag to relieve stress and provide comfort during long hours. Abundance of cushioning eases off the weight of the backpack when fully loaded. Luggage trolley strap on backside of the bagpack helps in situating it on the trolley suitcase handle. This enables us to comfortably carry the suitcase and bagpack simultaneously.