"We have a rule in the house. Rule number one is always to look cool, and rule number two is don't forget about rule number one. We have other rules, but the number one rule is always look cool," femalefirst.co.uk quoted Klum as saying.
She has four children - Leni, 8, Henry, 6, Johan, 5, and two-year-old Lou - with estranged husband Seal.
The 39-year-old believes her son Henry is the snappiest dresser because he likes to accessorise his outfits.
"Henry changes clothes 10 times a day and he wants to be very cool. I mean, he would wear a T-shirt and then he will wear a tie just around his neck, knotted, and then a belt over the shirt," she said.
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