It's an illustration of a fit of mine from earlier in the year: [[SPOILER]] A talented lass from reddit's /r/sketchdaily subreddit drew it as part of a daily challenge where they drew outfits from users on /r/malefashionadvice. Was dead chuffed with it.
Jacket ('08) is 95% cotton 5% polyester to give it stiff structure. Shirt is 100% cotton but quite shiny and dense - maybe a cotton gabardine i'm unsure. No fabric/year label on that piece (though it's on S/M/L sizes so I suspect from the 90s). Trousers ('97) are linen/rayon blend.