Todd Seat Cushions

[SmithLakeHonda]

I am looking for replacement cushions for my Todd Helm Seats. I purchased the boat in 2001 and I believe it is a 1993 model. I am fairly certain that the seats are not original to the boat. The only covers that I can find appear to be the "Todd 3550 Chesapeake #500 Cushion Set - After 2007". The straps are missing, but they appear very similar to this model.

How is this possible?