World's Lightest 8 Wheel Spinner 31.5 RAVEN. IT Luggage's best-selling Worldâ??s Lightest range continues to evolve and reinvent itself. This iconic collection keeps its strong design DNA, while adding enhanced features such as an 8 wheel rolling system, elegant colors, optimized volumes, and extra protection. The IT Luggage World's Lightest is constructed from high density polyester fabric and features a durable fiberglass frame with a sturdy locking handle system made from a single piece of aluminum. Available in a range of colors to suit your personal sense of style, this all-inclusive spinner rolling case offers style and storage while its featherweight design lets you travel with ease.