Features 1. The anti-theft travel backpack for men use new material Oxford, with zippers, which is water-resistant, durable and fashion, ensure long-lasting daily use. With a hidden zip pocket on the back,the anti theft waterproof backpack for men an women gives you a little more ways to keep your phone, wallet, passport, and other valuable items in safe place. 2. Function: The USB port allows you charge your phone at anytime and anywhere without take the powerbank out. Backside luggage belt allows your backpack fixed on a trunk handle and free your hands on a trip 3. The surface material is made of new generation waterproof material. It also has a trendy look and is easy to care - when it gets dirty you simply wipe it off with a wet rag. Slim Laptop Backpack is Both Practical and Stylish. 4. 3-in-1 Backpacks for Men: Can be put on vertical or horizontal way and comes with extra handle straps; Usually it is used as a backpack. And the top and side handles allow you to use it as a stylish handbag when the shoulder strap is hidden in the back space; With a detachable side strap that allows it change into a crossbody bag. You can adjust the backpack style according to your individual needs. 5. This 16 inch business backpack for men is ultra thin and also expandable to carry big objects.The size of this waterproof laptop backpack is 16.53 x 11.8 x 4.72 inch. Specification Material: Oxford cloth Color: Black, Grey Size: 42 x 30 x 12 cm Weight: 750 g Package Include: 1x Laptop Backpack