We have a Pongo (shorter and beamier than a sea kayak but longer than a whitewater kayak), a 17' Chinook (single sea kayak), and a Frenzy sit-on-top surf kayak. All three of those are 'plastic' rotomold boats. We also have a double Folboat which is canvas on a wood frame that can be disassembled and bagged for air travel. We have had it for 20 years or more and I don't know if they are still made. We quite taking our's apart because it is a bear to assemble.