The action star revealed that she feels more comfortable without briefs underneath her clothing on a day-to-day basis.
The `Underworld` star admitted that she would only consider donning underpants if her outfit didn`t consist of much material.
She confessed: "I don`t wear knickers. I mean, unless I`m wearing a very short skirt, or maybe if I am going on a mountain expedition with extra layers. But no, I don`t like them."
The 38-year-old screen star was doing promotion to mark the release of new film `Total Recall` when she made her controversial confession.
She said she got to know Colin Farrell, her co-star in the sci-fi remake, during a gruelling fight scene.
She explained to Maxim magazine: "It was my second day on set, and I`ve got my crotch in his face. That was an icebreaker."
`The King`s Speech` star, added: "She basically chokes me with her vagina."
Kate - who has 13-year-old Lily with former partner Michael Sheen - is known for her action film roles but recently admitted she would love to be offered more romantic comedy parts in the future - if the scripts were funny enough.
Asked whether she would consider making a comeback to the genre, Kate said: "I hope so. I really like the idea of doing as many things as possible."