I was thinking about fresco, but I noticed they are very expensive, so I thought of linen trousers in beige/cream/tan. Also in tan/cream I think they would look better to be worn with shirt sleeves without a jacket, instead of the usual grey which doesn't work as well. Just an opinion of mine.
I understand fresco is more formal than linen, but the jacket is quite casual.
Edited by Slh - 10/20/15 at 12:10pm