Eva Mendes in Calvin Klein Underwear ads.

Actress Eva Mendes is stripping down to her bare essentials as the spokesmodel for Calvin Klein’s new Seductive Comfort underwear line. Eva stars in the ad campaign for the new line of CK bras, available this Fall.

“I wear [Calvin Klein] G-strings all of the time on the red carpet and when shooting for a film because you don’t see the [panty] lines,” Eva says.

The Calvin Klein Seductive Comfort campaign debuts on the pages of U.S. magazines, including Vogue, Elle, Vanity Fair, In Style, People, Latina, O, The Oprah Magazine, and Interview, in September.