Perfect SizeThe size of backpack is 17.32x12.59x5.90 inch/ 44x32x15cm, recommended Age Grade36 for 3 years. This bookbag can effortless store books and other personal items, the backpack design can carry a large number of books, partly reducing the burden on the shoulders and back. The empty bag is upright and convenient for the sorting of items. Quality Material & StructureMade of high quality breathable, durable and sturdy polyester, long service life time and isn't easy to rip. Light weight, no strain on the shoulders. Large capacity, provides a separate space for your belongings sorting. One main maximum 15 "laptop storage compartment, suitable for laptop, book, clothes, wallet, pencil box etc. One front zip pocket and two side pockets , suit for your keys, phone, pen, umbrella, water bottle or other little supplies. Adjustable DesignBackpacks has double zip design, top carry handle and an adjustable shoulder strap that widens and thickens, adjustabl