Hardside luggage provides the ultimate protection for the interior contents of any traveler's bags. Even if several other bags are stacked on top of it, the rigid exterior typically will not bend, decompress or puncture. If it does flex under extreme weight or stress, it will simply pop back to its original shape. This is especially important when there are fragile or valuable items inside. Although made from a variety of solid materials, such as aluminum, carbon fiber, polycarbonate, plastic ABS and polypropylene, the hardside suitcases remain relatively lightweight and easy to maneuver. Hardside luggage offers most of the features found in softside luggage including smooth-gliding wheels, retractable handles, top and side hand grips, interior padding, multiple compartments, divider panels and straps to keep varied contents in place. The use of modern materials and colors produce hardside bags with a unique look and style that are available as single pieces or as a luggage set. Colors range from the conventional black, brown, red, green and blue, to futuristic shades of purple, pink, yellow, stark white, silver and gold. There are even colorful abstract print options from several manufacturers.