But the Australian supermodel and businesswoman admits she should sometimes make more effort with how she looks.
She said: "I don't look in the mirror - I should probably pay more attention to my appearance than I do.
"Sometimes the paparazzi send me shots of myself and I say, 'What was I thinking?' I'm not particularly groomed - I have a European attitude to beauty. I'm into nails, hair and skin texture rather than make-up and accessories."
The 45-year-old star - who has sons Arpad, 11, and six-year-old Aurelius with her ex-partner Arpad Busson - refuses to dress in the latest fashions, preferring to stick to clothes she knows suit her.
