Los Angeles:- Supermodel Heidi Klum says lingerie has become much more "important" to her wardrobe since she turned 30 and had four children. The supermodel has sons Henry, 10, and Johan, nine, and daughters, Leni, 11, and Lou, six. "With lingerie the older you get the more important it becomes. In your twenties you don't even really need to wear a bra, because everything is standing by itself, but later -- and after four kids -- lingerie becomes more important than before,” Klum told Vogue magazine, reports femalefirst.co.uk. However, the "America's Got Talent" judge, who was the first German model to become a Victoria's Secret Angel is not negative about ageing and still confidently flaunts a taught slender frame as she continues to model her lingerie brand Heidi Klum Intimates, which she doesn't intend to stop doing anytime soon.