It's kind of hard to see, but this fabric is a light blue and khaki stripe, and goes perfectly in this very neutral home.
The button-back is really just decorative. When I put the slipcover on the chair, I did not even unbutton it. This chair does float, though, and the buttons are more interesting than a plain back.
Throw pillow with self-welting
The blue of the chair picks up the blue of the swimming pool.