color:TKBASO Backpack/TK20943461 Features: 1 Thicken breathable strap design,comfortable to carry , Not easy to break - comfort padded shoulder straps, Our fashionable backpack has adjustable and comfortable straps so as to facilitate the carrying process to the fullest without tiring your shoulders or hands. The widening shoulder strap with plastic buckle to adjustable and 1 cm cotton padded to make shoulder comfortable. This backpack has a top handy loop for easy gripping and hanging, increasing the use of this package. With USB charging port outside and built in charging cable and pocket inside, this usb charging port design backpack gives convenient way to charge your phone while walking.Please noted to carry a power bank when charging as the backpack doesn't power itself. Large capacity : -6 pockets 1 main compartment can be used to store laptop books, clothes, lunch box etc 2 Water-bottle or umbrella pockets on both sides 1 Front zipper pockets can be used to hold mirror, glasses,keys, tissue, comb or some other small items make your travel conveniently 1 inner panel zipper to protect your personal items including wallets, cellphone, Important items etc 1 Inner open pockets Can put 15-inch laptop . How to maintain this backpack? - Wash it with clean water in ordinary temperature. - DO NOT wash it with hot water and alkaline detergent.- Hang to dry and store in ventilated place instead of sun exposure. - Wash Separetely to avoid staining.