Size: All are medium bag sizeLength 33CM Width 15CM Height 45CM Weight: 0.76kg Material: canvas fabric, lining is cotton, washable Color: Purple, black, Khaki, big red, sapphire, pink, light blue, tide, blue PLENTY OF STORAGE SPACE: The separate laptop compartment fit 15.6 Inch Laptop as well as 14 Inch and 13 Inch Laptop. With spacious main compartment, all kinds of daily necessities like books, college supplies and light clothes could be placed in this laptop backpack. Front Pocket roomy for tissue, keys, cell phone. Mesh pockets at side for umbrella and water bottle COZY&FIRM: Comfortable and breathable back design of lunch bookbag is friendly to the back. Thick and soft multi piece breathable pad of nurse backpack provides maximum support for the back of nursing students. Breathable adjustable shoulder strap reduces shoulder pressure of your back FLEXIBLE&FUNCTIONAL: the main packing compartment accommodate more daily necessities and tech electronics accessories when you dont need to carry food. Perfect partner for work and campus life TRAVEL FRIENDLY DESIGN: External built-in USB charger, this waterproof book bag makes it more convenient for you to charge your phone while walking. Suitable for international air travel and day trips, as gifts for men and women.