【Dimensions】This backpack fits up to 17.3" laptop. Exterior dimensions (L*W*H):19.5x 12.5 x 5.3inch. Simple and practical, lightweight and comfortable，very suitable for travel，and it also work well as business/work backpack, computer bag, hiking bag, daily bag.

【Anti-theft Design】 This backpack apply anti-theft design techology. Includes a theft proof combination lock& durable metal zippers, no thief can open your backpack easily .Provide security for your journey.

【External USB Charger Port & Headphone Jack】 USB charging backpack with charging cable is convenient to charge smart phone/tablet/other devices. Headphone Jack: you can listen to your favorite music when you are carring the backpack on road. Note: Not Include Power Bank

【Comfortable Back Support System】Ergonomic design of S-shape padded shoulder straps and padding back design, made from high elastic and breathable sponge and fabric, equipment with adjustable chest buckle and ring type adjustable hasp, adjust the strap length freely , reduce the burden of weight, protect the back and shoulder effectively, more comfortable for your life.

【Durable Material】Backpack made of tear-resistant durable nylon fabric and its dual-access zipper with anti-theft design allows for easy access and increased safety.Lightweight, durable and anti-theft is the biggest feature of this backpack. Age: over 12 years old