The inflatable Thwart Seat is excellent for added back support, or for adding another paddler to your kayak. This thwart seat is compatible with all Aire kayaks, including Tributary kayaks. Four attachment points make it easy to install this seat at any set of cargo straps in your boat. Whether it's for added comfort, or another paddler, the Aire Thwart Seat has your back. Adjustable, inflatable back support Urethane AIREcells Zipper access Fabric denier x material weight: 650g 1 air chamber w/ a Summit II valve Flip strap 1-year manufacturer warranty against defects Please Note: Some brands may not be shipped internationally. This item can only be shipped to U.s. addresses. We would love to ship the item, please be sure the address provided upon checkout is within the U.s. Otherwise, we will contact you via email to advise that your order has been canceled due to the shipping restriction.