Yves St. Laurent first introduced the concept of menswear for women with his iconic Le Smoking suit in 1966 and now the trend (think: boyfriend jeans, button-downs, oxfords) is part of our everyday wardrobe. Today the brand takes gender bending to the next level with the introduction of Edition Unisex. Inspired by his Men's Spring 2009 collection, Creative Director Stefano Pilati reinterprets menswear staples with a more lady-friendly cut. He pairs sexy and powerful sportswear, like high-waisted cropped trousers and borrowed-from-my-date dress jackets, with girls-only skirts and bralette tops. The newest collection, which ranges from $250 for a T-shirt to $3,550 for leather jackets, will debut March 5th-14th at the YSL flagship boutique in N.Y.C. and then be sold at select stores. Click on to see the entire Edition Unisex 2010 collection.