Features of the Eagle Creek Expanse AWD 30 Upright Travel Pack Maintaining your luggage is important to its longevity. With the Bi-Tech armor lite material, the AWD 30 will continue to perform long after your other bags have been retired Ultra-durable, multi-directional wheels stored in a heavy-duty wheel housing keep you rolling along anywhere your life takes you The fabric blocking material covers scuffs and stains, and helps your bag maintain a fresh look, even after some years of travel When you find you need to pack some extra gear, the expansion zipper offers the additional carrying capacity you need The lockable zippers and central lock point with secure zip toggles allow for an excellent security feature against unwanted people easily accessing your luggage With multiple external lash points, you can carry additional gear or even secure your bag to the roof of a car if needed Fabric blocking material helps hide stains and scuffs from being easily visible