I'm going back to the office world tomorrow after a 7-year hiatus, and I know I'll be freezing. I already plan to layer but I'd like to keep another layer at work. My old self always used a plain black fleece, but I really don't want something dull like that.

Have you seen anything interesting lately? It needs to be non-wool, no animal hair or fur of any kind or percentage. Cotton or synthetic is fine. Black or dark gray would probably be best so it would go with everything, and needs to have room for the layers I will probably already be wearing.

Ideas?