Biaggi zipsak under seater rolling duffle

Lightly used Biaggi zip sack under seater   From the website: Our expandable under-seat carry-on is an extremely versatile bag that starts off as a small easy-to-store pouch, and opens to become a 4-wheeled carry-on that slides comfortably under the airplane seat in front of you. Need more space? No problem! Your under-seater expands a full 5 upwards, to become a full sized TSA approved carry-on! An extra-deep packing cube is included, so you can pack your clothes in the cube, and still have plenty of room for your other carry on items.  Durable and water resistant nylon fabric Rear trolley sleeve, allows you to slide the bag over the trolley handle of a suitcase 4 multi-directional spinner wheels 3 exterior zippered pockets, and two interior mesh zippered pockets The carry-on can be wheeled or carried using its adjustable cushioned shoulder strap.   Dims: 16x15x9, Expands to 21x15x9 Dims Folded: 15x9x4 Weight: 3.85 lbs Packing Cube Dims: 14x9.5x5 Volume: 30 liters not expanded, 42 liters expanded. Materials: Exterior fabric: Crinkle Nylon, water and tear resistant Zippers: Nylon