The ZDX 21" International Carry-On Expandable Spinner offers 2.5" of expansion depth and still fits in an overhead compartment, making the difference between having to check a bag or not, and saving time and money. Features such as an outside battery pocket so you can keep charging your phone, our Smartlink strap for connecting two bags and an easy-access pocket to hold items for security checkpoints are all designed to make your life on the road a lot smoother.Features:Interior Features:SpeedThru pocket with RFID shielding blocks digital pickpocket while providing quick storage of items at security checkpoints; orange lining alerts you if pocket is openLarge, gusseted u-zip front compartment with interior slip pocket has a wide opening for hassle-free access to items like a jacket, sweater, books and shoesHandy, easy-access slip pocket with elastic closure on front of bag stores small, must-have itemsGenerously-sized interior provides ample room for your clothing, travel accessories and toiletriesLarge cinch down garment panels keep contents from shifting in transit; an integrated mesh zip pocket keeps smaller items within easy reachTwo large zip pockets on top lid offer great solutions to keep you organizedExterior Features:Power Pocket on back of bag allows for a pass-through USB cord for easy-on-the-go chargingSmartLink strap transports two or more bags as oneSoft top carry handle, integrated bottom fabric handle and a low profile side handle for easy lifting and carrying optionsReinforced, low profile corner guards for added durabilitySpinner wheels with metal ball bearings for effortless 360� navigation and a long rolling lifeDurable self-repairing YKK zippers for smooth zipper action; main compartment zipper pulls can be used with a cable lock to secure contentsHideAway ID tag conceals personal information; tag can be monogrammed to distinguish your bag from other bags800D ballistic nylon outer fabric resists wear, moisture, dirt and abrasionPat