The seat cushion measures 25.5" wide x 23.5" deep x 7" thick with an optional single welt in the front. The sides taper out in the middle and the back is curved at the 2 ends and has a zipper.
The back cushions measure 24" wide x 19" high x 6" thick with the option of 2 sets of buttons, which we recommend. It has a curve at each end and a zipper on the bottom.