I bought two of these chairs one year ago and bought two more this year. I liked them that much! But I noticed the older ones looked sun faded and had little finger prints, etc, on them.  I took some Pledge furniture polish and sprayed it on them and wiped them down and they look just like new again!!  Do this in the shade.  There is no residual oiliness at all just smooth and soft again. Great looking chairs!!  And soooo comfortable.