Serge Cajfinger makes timeless and very chic prêt à porter inspired by Grace Kelly, Audrey Hepburn and Jackie Kennedy. Always stylish and classy, sometimes sexy, but never vulgar.
The PK clothes are quite expensive (400-1000 euros for a dress), so look out for the sales, and remember that it can be great to combine designer clothes with much more affordable pieces. That perfectly cut PK-jacket can make you look outstandingly good, although the rest of your outfit comes from H&M or Zara!
There are several PK-shops and corners in Paris. I recommend the shop located 192 Boulevard Saint Germain (métro Saint Germain des Prés, line 4) as well as the corner at Le Bon Marché (métro Sèvres-Babylone, line 10 and 12). www.pauleka.com