Lightweight yet extremely durable construction. 100% Polyester. Dual tone dobby nylon accent. Oversized in-line skate wheels. Push button & self-locking retractable handle system. Expandable feature offers 30% more packing capacity. Interior zippered meshed pocket and tie down straps. Industrial hardware with gun-metal hardware finish. Self-repairable #10 zippers on main compartments. Exterior Dimensions: 30in. H x 18in. W x (11in. + 2in.)D (11.5 lbs.). Interior Dimensions: 29in. H x 18in. W x (10.5in. + 2in.)D.