The woman could make a hessian sack look good, I know, but it takes a certain amount of panache to pull off a man-style suit without looking too severe, and Kate Hudson does it perfectly.
With a soft updo (I'm glad she didn't resort to a glam blow dry, this works much better) and with black details on her white suit (those pants with a stripe down the side are super flattering folks, they draw the eye long, get into them!), she keeps the look feminine with a lacy black cami.
Such a good look, perfect to stand out at a cocktail party when you don't feel like slipping into a dress.