[Goldia]

The tunnels do sound interesting and a really good idea to keep out of the cold. They would be handy in NYC so that you don't have to wait at every crossing to cross over the road.

I'm somewhat incredulous that your company sent you from France to Canada to learn what to wear for work! Although the very specific advice you have received from F regarding which t shirts are acceptable to buy now makes sense, She obviously knows your fashion sense needs work!