This Helium Cruise 30" Trolley Duffel is made with a very durable Bullet Proof Ballistic Nylon fabric that is designed to resist moisture, dirt, wear and abrasion. The reinforced corners and polypropylene kickplate are there for additional protection for your bag to help at those key stress points. The 30" size as well as the flat and gusseted front pocket will give that extra capacity you might need for your trip. When you go to wheel the spacious Helium Cruise Trolley Duffel, a recessed, telescoping pull handle with "one hand operation" push button to lock and release will put you at ease. In addition, the carry handle on each end will make it easier to hoist a fully-packed bag into the trunk, on the bed or wherever needed. In-line skate wheels will be there with you over many, many miles and over every adventure coming your way.