Large Capacity & Expandable: MOKiN Business Backpack with expandable feature offers you more packing capacity up to 40L.Unzipping to get larger storage space than can easily hold packing cubes, make-up bag, outfits, camera bag and gear for 3~7 days of travel. The carry on backpack fits overhead and under seat while in state of standard carry on size, is ideal for men, women, weekend travelers, or occasional vacationers. Extra 4 Packing Cubes: MOKiN Carry on backpack comes with four packing cubes. large cube for sweaters, jackets, pants. Medium cube for shirts, shorts. Small water resistant cube with transparent side for providing clear overview of toiletries. there's also a shoe pocket. Keeping your belongings neater and more organized. Serve you well as carry on bags for airplanes, weekender backpack, personal item travel bag, overnight bag. Designed For Travel: MOKiN weekend travel Backpack is constructed to be most comfortable over