The American Tourister Soundbox 35L Luggage Bag is an expandable and roomy luggage bag complete with 4 smooth rolling double wheels, a 3-digit TSA lockable zip, and an organised interior. The expandable zips allow for more space and can expand to 41L. The shell is made from strong polypropylene which is known for its toughness and durability. Travel in style and have the space you need for everything from long stays to family vacays.