Stunning Sports Illustrated star Ellie Thumann rocks her vintage Cavalli mini-dress, which sports long sleeves, a short skirt — and a completely open front with only a double bralette for coverage.

Both from Ralph Lauren's collection, Alba wears the Camden Blazer and the Pleated Midi Dress. The blazer features sharp shoulders and a double-breasted front. To accessorise, she opts for the Ralph ...