About Upoalker Innovation is the main concept of our Upoalker brand. We are committed to providing our consumer with high quality and cost-effective products, which aims to make the consumers really feel the charm of the product itself. Features - Made from durable nylon fabric and featuring a reinforced bottom ,which is Light-weight Carrying and perfect for business traveling, weekend getaways, school, shopping and other outdoor activities in daily life. - External USB with built-in charging cable offers a convenient charging of your electronic device anywhere.Designed for either Micro-USB or Apple products with a USB 2.0 Port. - 10+ Compartments offer a separated space for your Laptop, iPhone, iPad, passport, pen, keys, wallet, watch, charger baby, Mp3, 4A file, books, clothes, umbrella, bottle and more. Easy find what you want. - Two side sealed pockets provide a more sturdy and security load than other mesh pockets. - Soft lined laptop sleeve holds laptops up to 15.6 inches, offering enough space and great comfort. - Two "S" curve shoulder straps are with design of force reinforcement. - Included metal zippers and a combination lock,which is theft proof and reliable,protecting wallet and other items inside from thief and offering a private space. Specifications • Capacity: 1.24 cu ft/35L • Dimensions: 17.7 x 12.2 x 6 inches / 45 x 31 x 15.2cm • Shoulder Straps: Adjust from 15.7" to 36.2"/40 to 92 cm • Fabric: Water Resistant Polyester Package Included --- 1x Backpack --- 1x Combination Lock Warranty Maxibox shop offers Lifetime Warranty. If anything goes wrong with our product, please contact us and our customer service team will always be here to assist you.