Fashion icon Vivienne Westwood has called on the Duchess of Cambridge to stop buying so many different outfits and instead make more of an effort to be environmentally friendly.
Before her London Fashion Week showcase, Westwood said that when Catherine goes to so much effort to get an outfit that looks good, she should wear it more often.
The designer, who believes in quality over quantity, disapproves of Catherine's expansive wardrobe.
"I don't have any advice to her, except I think it would be great if she wore the same clothes over and again, because that's very good for the environment and it would send out a very nice message," Westwood said.
"If you're going to all that trouble to get an outfit that suits you, then you should keep on wearing it.
"I mean you don't have to have a red outfit one day and then something almost the same in blue the next."
Westwood, dressed in her usual wacky style with an image of Julian Assange on her T-shirt, said her Red Label collection also carried the theme of quality over quantity - but that did not mean less glamour.
"It's for anybody that wants to dress up quite wonderfully glamorous," she said.
"All I can say is it's quite a short collection this time because what I'm trying to aim for in my second line and all my offshoot products is to just keep aiming for quality all the time and have less quantity.
"I'm just trying to do a quality choice for people to wear something that really helps them to look good.
"That's what fashion is here for. It's here to help."