Suit: linen; shirt: linen-cotton; tie: linen; square: silk. Colors are reasonably true, slightly washed out. Oh and for those who say it's easy to take pics, it's humid as the tropics here right now, I get very unhappy after my short walk from the train and really want to get the hell out of this get-up. The few minutes it takes to get the pic are unpleasant. You're welcome.