1680 denier ballistic nylon and 420 denier ripstop nylon backpack with outside wheel system with in line skate wheels. Retractable telescope handle. Two front double zippered garment pockets. Zip away backpack straps. Bag buddy strap. Available in Black/Black; Black/Orange and Black/Teal. Product Size: 28" x 20 1/4" x 10 1/4"