Zuca is a unique concept in bag design where you can mix and match durable insert bags with colored aluminum frames for a unique look that matches your personality and style. Inspired by aerospace technology, this durable aluminum frame redefines what a travel bag can be. It gives you a lot of cool and convenient features but one overall is worth every penny - a seat! Incredible Construction for Any Activity The insert bag is constructed from 600D water-resistant polyester and can withstand the rigors of everyday use. Kids will love it since it can easily store and transport all of their books, without straining their backs. Adults will love Zuca too, as it makes for a great travel companion on vacation or business trips. The interior is vinyl coated for added protection and the entire bag is machine and hand washable. Have a Seat Anywhere! Think back at all of the lines and waiting you've had to do while traveling. Shuttle buses, airport gates, security lines...waiting is unavoidable and unfortunately it can last for hours on end! If you're on a line or in a jam-packed terminal, a seat is likely impossible to come by. The top of this frame can support up to 300 lbs. so don't be afraid of damaging your Zuca. Take a load off or use the super sturdy top to store and transport more gear. Unique Wheel Design Roll Almost Anywhere Another great feature of this Sport Frame are the dual 4" polyurethane wheels. Almost every bag has wheels, but these are mounted vertically to easily handle being dragged up stairs or over curbs. They also absorb shock, roll easily on most any surface. Two feet are built-in to keep the bag stable when not in motion and are constructed of Nylon 6 material. It's super durable yet gentle on easily scratched flooring. These wheels also have a cool flashing design with embedded LEDs. They look great and will keep you safe when wheeling your bag at night. | ZUCA Midnight Sport Insert Bag andFrame.