HOMIEE 50L Expandable Travel Laptop Backpack, Flight Approved Carry-On Luggage Backpack, 17.3 Inch Water Resistant Backpack (Grey)Large Expandable CapacityTired of carrying your suitcase around? This HOMIEE 17. 3 inch large expandable backpack can be expanded from a normal backpack to a luggage like capacity: from 50*35*18cm, 38L capacity expanded to 50*35*25cm, 50L large capacity, so you can travel light without carrying a suitcase. 180 Fully OpenThe main compartment of the HOMIEE travel backpack is designed to open 180 and the zipper can be fully zipped to the bottom to split