Hard Case Safety – Air Cases provide the strength and rigidity of a hard case at a fraction of the weight. They are strong enough to withstand more than 400 pounds stacked on top, yet they weigh up to 35% less than the average plastic hard case. Impact Protection – Patented layered construction absorbs and disperses impact better than the single-layer wall of an injection molded hard case. Durability and Weather Resistance – Built with the finest materials and hardware, including water-repellent 1680D ballistic nylon (exterior), soft brushed tricot (interior), hypalon-reinforced corners, YKK zippers and heavily-reinforced stitching. Heavy-duty Wheels and Extending Handle – Corner mounted wheels give the case a wide wheelbase and ensure excellent stability when rolling. Aircraft-grade aluminum handle extends to comfortable walking height, easing the strain on the back and shoulders when wheeling through long airport stretches. Ergonomic handle has soft coating for a comfortable grip. Tethered Case Lid – Keeps lid upright when opened so it works as a mobile workstation. Helps the Air Case maintain a small footprint in tight environments. Soft Rubber Hand Grips – Comfortable to carry even when the case is fully loaded. Three handles per case ensure that heavy loads can be shared with a second person when needed. Zippered Interior Pocket – Keeps cables and other small items organized. Versatile Divider System – Reinforced, adjustable dividers to customize layout. Gray dividers are flexible and blue dividers are rigid for additional support. I.D. Window – Molded I.D. window fits a business card to easily personalize case. Materials – 1680D ballistic nylon (exterior), soft brushed tricot (interior), hypalon-reinforced corners, YKK zippers, Welded Steel D-rings, ABS molded rim, air-channeled polypropylene walls, High-Density EVA foam.