Delsey Helium Pro 21 Carry-On Rolling Upright Suiter - Sage Green Main material is constructed of incredibly durable 2520D Ballistic Nylon with EVA foam backing Lightweight Polypropylene honeycomb frame Velocity Ball bearing wheels with stylish wheel covers for easy rolling and long lasting service TSA approved combination lock furnished on Trolley Uprights Self-repairing 10 zipper on main openings