<b>Additional Details:</b><br> <br><b>Side Straps</b> --- to make the backpack tighten when you backpack is too baggy or it needs to be adjusted into the suitable size to fit into the aircraft luggage compartment.<br> <b>Side Mesh Pocket</b> --- it is a perfect place to fit water bottle and the opening is elastic that can fix your bottle well.<br> <b>Headphone Cable Hole</b> --- it has been cut and you can cross the cable thru to connect your phone/MP3.<br> <br> <b>There are three main separate compartments, the following details for your reference:</b><br> <br> <b>1.The outermost compartment: 29 cm x 37 cm , 11 inches x 15 inches (L x H)</b><br> It has a detachable key chain and there are many assorted pockets,including 3 card pockets, 2 pen pockets, 1 zipped mesh pocket, 2 wall pockets and 1 big pocket. Overall, this <br> outermost compartment could be a main pocket fitting papers or binders.<br> <br> <b>2.The middle large compartment: 15 cm x 30 cm x 44 cm , 5 inches x 12 inches x 17 inches (L x W x H)</b><br> It contains 1 main big compartment , 1 separate compartment and 1 padded phone pocket (10 cm x 17 cm, 4 inches x 7 inches) hanging beneath the headphone cable hole.<br> <br> <b>3.The Rear large compartment : 36 cm x 6 cm x 46 cm, 14 inches x 2 inches x 18 inches (L x W x H)</b><br> It contains 1 large compartment and 1 fully padded laptop compartment with protective airbag.It can fit most 17" and all 15.6" laptops <br> <br> <b>Package Includes</b><br> 1 x Laptop Backpack<br>