<b>About AMBOR:</b> <br> <b>We promise that all of our products are Strict Quality Control to assure the quality.</b><br> satisfactory after-sales service. Any reason makes you dissatisfy with this backpack , please contact us, we promise Full Refund or a Free exchange, and we will reply you within 12 hours.<br> <b>Feature:</b> <br> --Made of durable and sturdy tear resistant polyester fabric material,this backpack is more load-bearing but not waterproof. <br> --Designed with a fixed combination lock,and a hidden Anti theft pocket on the back , protects your valuable items from thief and offers a private space.<br> --External USB port with built-in charging cable offers a convenient charging of your phone anywhere. But please note that power bank is not included. <br> --External headphone interface frees our hands and offers more convenient of enjoying musics and audios when you're on the road.<br> --Spacious compartments with independent 10+ pockets can hold your items, it's organizational and professional,prefect for your 17.3 Inch laptop. <br> --S-shaped adjustable shoulder straps can relieve shoulder pressure and makes it easy to carrying . <br> --Light weight slim laptop backpack with modern style, fits for daily use at office, college and travel, suitable for both men and women. <br> <p><b>Specification:</b><br> <b>Color:</b>Grey-17.3<br> <b>Weight:</b>1.65pounds<br> <b>Dimensions:</b>19.1x11.6x7.5inch<br> <b>Fabric:</b> durable polyester fabric material<br>