This 18" carry on is made of polycarbonate. This material is extremely lightweight, durable, and protects the contents of your luggage. Front zippered compartment allows for quick-access to items. Fully padded laptop pocket, fits up to 15" laptop. Silent dual casters, 8 spinner wheels rotate 360 degrees for easy maneuverability. This luggage allows you to pack more while avoiding the excess weight surcharges imposed by most airlines. Expandable. Tsa locks. One touch aluminum handle. 5 year . 20. 5"x14. 5"x8. 5" (with wheels) weighs 7. 7 lbs.