Collapses down to 2.7" thick - takes up minimal space and easily stores under your bed or in your closet. Constructed from durable and premium quality ABS hard shell that is scratch, water, and impact resistant adding to the longevity of the suitcase. S: carrying capacity of 9.2 gallons, measuring 20" x 14" x 9" when expanded - meets the requirements of most airlines' carry-on luggage specs; L: carrying capacity of 9.8 gallons, measuring 25.6" x 15.7" x 10". A height-adjustable telescopic handle for easy transportation, and coated wheels for silent and smooth rolling over the floor.