Fits 2008 Wilderness Systems Tarpon seat backs and other Confluence brand kayaks outfitted with similar seats, such as the original Zone Outfitting in Perception and Dagger kayaks (circa 2006-2010) and modern Mad River canoes (circa 2013). Important: This padded seat back cover has openings and an adjustment string on the sides to tighten securely to the seat back. May fit other makes and models of kayak seat backs. For 2009 Tarpons please see the Phase 3 seat back pad, for 2007 and before please see the CSS Padded Seat Back Cover. (alt 17040130) If out of stock use the Zone Seat Back Pad as a substitute.