I read a lot on here about bare legs in the office in the summer. Each to his own, I wear below the knee linen skirts most of the time with bare legs, so there is little exposed leg visible.
What I never see is any discussion about bare arms. In my opinion there aren't many people who can get away with bare arms and look professional and they are so much more obvious than bare legs.
I wondered what other people think, without being goady.