We are smart casual so when I get in I'm in cycling gear and then head to the shower to change. However as i sometimes get asked things on the way to the shower by colleagues I tend to wear a pair of MTB shorts over my bib.
We had a junior doctor who would regularly come into the staff base before going home in full Roadie Combat mode. He wore the skimpest light coloured bib that drew at lot of comments from other staff. It was not a professional look and I've chosen never to emulate him.