About the 385ft FastTrack Inflatable Kayak Now with a new patented, state of the art, external, rigid, inflatable NeedleKnife Keel for a faster, smoother paddling experience!. Sea Eagle FastTrack Kayaks are sleeker and faster and than ever before! The FastTrack's combination of sleek, curved, touring shape with state of the art NeedleKnife Keel provides true rigid kayak performance with the benefits of an inflatable. Most importantly, the FastTrack is designed to be extremely safe and stable. . Best of all, because FastTracks are inflatable they can be packed into a bag that's a mere fraction of their size!