Best used as a replacement seat for Old Town kayaks, such as the Dirigo Solo, and Tandem kayaks circa 2012 to date. Fits other OT kayaks; Loon 111, Solo and Twin Otter kayaks circa 2009 to date. May fit the much older Loon 160T. Please select carefully, kayaks seats are not universal! It is assumed that this seat will fit a kayak about 28 inches wide, give or take. This seat assembly is constructed of blow-molded plastic. This seat may fit other kayaks not listed here. Seat has a folding seat back and articulated side panels. The width of the seat adjusts 20-23 inches. Seat assembly is 15 inches high and approximately 20 inches front to back. The seat bottom appears to accept a center bar, and sides accommodate side bars approximately 1 inch in diameter. This seat can be secured to bars with the OT Seat Bracket Set. This seat comes with the Dirigo Seat Pad Set (01.1315.0122) on it! The Seat Strap may, or may not, be mounted to seat. OLDOUT SEAASSY 01.1315.2547 = Blow Molded Seat (No pads or strap BARE!) Use 01.1315.0862 Kit Seat Strap Kayak Blow Mold (no hardware). ~ 01.1331.0387 = Blow Molded Seat Assembly (With strap and pad set 01.1315.0122) still available 2014. ~ 01.1331.0388 = Blow Molded Seat Assembly (No pads WITH strap) NOT available. ~ 01.1331.0399 = Blow Molded Seat Assembly (w/ strap and pad set 01.1331.1958) NOT available.