Peter Kramer / Invision/AP 1 / 5
Peter Kramer / Invision/AP 1 / 5

Victoria Beckham shows even more skin in a new Armani underwear ad.

The mother of three, 35, unveiled her new 20-foot banner -- from the Emporio Armani womens underwear advertising campaign for Autumn/Winter 2009/10 -- Wednesday of Macy's Herald Square in NYC.

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Beckham -- who once said she had "saggy skin" and looked "really awful" naked -- previously doffed her duds for the designer's spring/summer 2009 ad campaign (shot by fashion photographers Mert Alas and Marcus Piggott).

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"It's an honor to have been selected by Mr. Armani to represent the Emporio Armani Underwear brand and to execute his vision with the incredibly talented team of Mert & Marcus," she said at the time.

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Last year, her husband, soccer stud David Beckham, posed for the designer in his briefs.