Delsey Helium Pro H-Lite Carry-On Rolling Duffel 51420 Red Main material is Lightweight Ultra Ballistic Nylon. Lightweight integrated honeycomb Flex Frame for structural integrity. Velocity wheels are recessed and protected, providing a smooth operation and long lasting service. Recessed Locking Trolley Handle made of Aircraft Aluminum with One Button Operation, Ergonomic Grip and extra long handles for ease of use. No.10 Self Repairing zippers with Weather-Tight seams.