XDb-21 vs Xb2003 seats??

[white03]

Looking to replace the seat covers on my Xb2003, I like the style of the seat covers on the XB-21 but will they fit on the fiberglass seat shells of my boat? visually in pictures the Xb-21 fiberglass seat shells look taller??

Bill

 

[F2008]

I kind of remember someone saying they are taller.