Ohhh . . . the rail back
Rail Back Cushions
Increase the comfort of your stern rail seats While stern rail seats are a terrific place to sit, the rail digging into your back can get uncomfortable. Make the comfort lasting with Stern Rail Back Cushions. These cushions are designed to compliment all Hunter factory installed stern rail seats. (Stern Rail Seat Cushions are sold separately - see link below.) The cushions fit snugly along the curve of the stern rail. They are covered with Sunbrella which makes them resistant to mildew, rot, and UV rays. Plus, they can be made in any color to match your existing canvas. The Sunbrella cover wraps around the rail cushion and closes along the bottom with velcro. The ends cinch up with small draw strings. These cushions will dramatically increase the comfort of your stern rail seats.
Nevermind then . . . don't have a pattern (g). Good luck anyway.