Elegant and grown-up are terms not often associated with leather... Until now. Designers have fashioned traditionally tough styles into something altogether softer ( even biker jackets now seem too billow, thanks to gently shaped sleeves). There are prim dress coats at Louis Vuitton, knee-length skirt suits at MaxMara and Yves Saint Laurent, and ladylike shift dresses just about everywhere else. At first glance, one could be forgiven for believing that some of these dresses aren't leather but silk - so light, supple and delicate are they. Add one to your workwear wardrobe right now.