Nina Garcia’s Bathing Suit Is Like Her Invisibility CloakWhen she wears it, she says, the only people who see her are Tinsley Mortimer and Marjorie Gubelmann. Meanwhile, this past weekend boldfaced names like Gwyneth Paltrow and Peter Cook feigned invisibility — but you would have seen them if you were there. Because in the Hamptons, there’s nowhere to hide.