Polyester lining Zipper closure Machine Wash 【Large Travel Backpack for women】This backpack is made of waterproof durable polyester, good air permeability and heat dissipation with two padded shoulder straps, offers lightweight carrying and of force reinforcement, relieve the pressure of your shoulders, and keeping cool when you carry it for a long time. And it is tough, firm and does not fade. 【Separate Shoe Compartment Design & Wet Bag】Main pocket x 2, laptop compartment x 2 (fit for a 13” tablet and 14” laptop respectively), and many other pockets for different purposes. The wet bag is made of high density water resistant material can help you to separate dry items and wet items, if you have wet clothes or towel, you can put it in wet bag. A separate shoe compartment can help you carry and keep your shoes better in your travel bag. 【USB Charging Port】With built-in charging port enable to charge your phone anytime and anywhere. 【Anti-theft Multifunctional Backpack】There is a zipper pocket on the back of the bag, which can store valuables such as mobile phones and iPads, which is anti-theft and convenient. Multifunctional Daypacks：Hybrid (Backpack/Duffle Bag/Shoulder Bag/Travel Bag) conversion. Can be used several different ways. It can be served as everyday backpack,spacious college bookbags, professional backpack for laptop or daily use at anywhere for weekend getaway,occasional