Durable Construction and Advanced Wheel System: Durable woven houndstooth material, 8-recessed spinner wheels with Control Track Self Aligning Technology. With the sound of a click, you'll know that the wheels are adjusting into a straight line to help ensure easy maneuvering throughout your travels. Flush mounted TSA approved combination locks on 25" and 29" for security Smart Storage and Protection Features: 20" carry-on has an easy to access padded laptop compartment, Oversized laundry bag with locking drawstring closure inside 25" and 29", Hyperlight injection molded chassis for superior strength, Fog Guard fabric protection helps repel water and stains Enhanced Handle and Interior Organization: Locking trolley handle has aluminum channel tubes for added strength, Ergonomic comfort grip locking trolley handle with TPR, Full London Fog stripe lining, Interior has a wet pocket, zippered accessory pocket, zippered side mesh pocket and deluxe packing cradle to keep your belongings organized Expandable Design and Quality Hardware: Convenient top, side and bottom carry handles, Spinner uprights expand 2" for additional packing capacity, Industrial self repairing nylon zippers Protective Features and Warranty: Skid guards and corner guards protect fabric and trolley tubes, 10-Year Limited Warranty Convenient Accessibility: Two front zipper pockets provide quick access to last minute items and travel essentials during your journey