With the Birch 21" hard side carry-on luggage, you can keep your luggage with you from home, airplane, to destination. Made of durable super abs hardshell technology, you'll be at ease knowing your clothing and accessories will be safe. This luggage features push button trolley handle, is expandable which offers 25% additional capacity, top, side and bottom carrying handles for easy lifting, multiple interior compartments and interior mesh pockets and tie down straps.