WANDF Expandable 17 Inch Travel Laptop Backpack For Spirit 。Large Travel Laptop Backpack, Expandable Flight Approved Backpack, Carry on Backpack for Women, Waterproof 17inch Laptop Hiking Backpack with Shoe Compartment, Black Size: XX-Large Style: Pure (Black) Expandable Zippers Capacity Water-resistant Material Separated Shoe Compartment 【Expandable Travel Backpack】Size before expansion is 18.5x12.2x8.66 inch/47x31x22cm; size after expansion is 18.5x12.2x11.8 inch/47x31x30cm. Enlarge capacity by zipper to meet the large capacity needs of travel, perfect for 5-7 days daily travel. 【Carry on Backpack Flight Approved】The travel backpack meets the carry-on requirements of many airlines. The air backpack can be placed under plane seat or overhead that save your carry-on charges. Note: Please check with your airline for size restrictions before your trip. 【Multi-pocket Design & Wet Bag】Main clothes bag x 2, wet pocket x 1, Laptop compartment x 1, Anti-theft pocket x 1 and many other pockets for your multiple needs for your daily use. The wet bag is made of high-density water-resistant material that can help you to separate dry items and wet items, if you have wet clothes or a towel, you can put it in the wet bag. 【with USB Charging Port】The backpack with built-in charging port enable to charge your phone anytime and anywhere. with a cable for charging port to connect the powerbank(Not included) in the bag and your data cable to charge your device. 【Waterproof material & Breathable Shoulder Straps】This laptop backpack is made of waterproo