IZOD Luggage Journey 3.0 20-Inch 4-Wheel Expandable Carry-On, Exit Red, One Size Cases expand for additional packing capacity with the pull of a zipper. Perfect for accomodating extra items acquired during your travels Glide-Rite spinner wheel system provides 360 degree mobility, allowing you to push, pull or walk alongside your case with minimal effort and strain on arms, shoulders and back. Adjustable Add-A-Bag Strap lets you conveniently add a second bag for carrying ease Lightweight construction means you can pack more without exceeding airline weight restrictions Components and materials go through a battery of tests to ensure durability and reliabilty