Zipp Wheel Bag Dual holds two wheels. Protect your speed weaponry in transit to the race. Each wheel slips into an individually padded pocket. There are additional placements and a stuff sack for race supplies like quick releases, CO2 cartridges, mini-pump, spare valve extenders or tubes. The exterior is surrounded by a thick layer of high-density foam to soak up the big hits while the thick-skinned nylon cover resists punctures and tears. Includes a removable, adjustable shoulder strap and non-removable padded hand strap. Mesh ID pocket with key clip. Note: This bag is not rated for airline travel. If you choose to fly with this bag, we highly recommend removing the skewers from your wheels and padding the wheels with additional materials - especially if you're carrying a disc.