Expandable: This laptop backpack is expandable from 17cm to 29cm, capacity expands from 22L to 38L. Size: 45*30*17cm. It fits most global hand cabin luggage.
 
Lots of pockets: There are two main compartments on the front for daily items; Anti-theft pockets on the back for important items; Internal computer compartment and expandable compartment are for a 15.6-inch laptop, clothing, books, binders, A4 files, etc. It designs with wet and dirty separation PVC bag for washing supplies.
 
Durable workmanship and material: This backpacck is made of durable wear-resistant, scratch and splash resistant materials. The shoulder strap and back system adopts breathable material, streamlined back and shoulder strap for weight loss and sweat absorption. Adjustable chest strap, built-in card holder pocket, convenient for placing bus card, key or change, and whistle attached to the belt for first aid.
 
USB charging port: The USB charging design makes it convenient and quick to use, freeing your hands. (Note: Powerbank is not included).
 
Quality guarantee: Buy without worries, this product is covered by a guarantee of return and free refund within 30 days from the date of purchase in case of quality problems.