I am slightly worried that you might not see many 2.55s when you are in Paris... But I guess it depends on what colour you're looking for... 2.55s have been out in France since the end of January. I would suggest visiting the boutique at rue Royale which only sells shoes and bags. It's not as well known as other big Chanel boutiques. Obviously rue Cambon has the best selection, being the flagship store. But everyone goes to rue Cambon...!