The Duchess of Cambridge has yet another critic: Dame Vivienne Westwood, one of Britain's most celebrated (and iconoclastic) fashion designers. Westwood, 71, first called out Kate Middleton back in 2011 -- complaining about the royal's eye makeup -- and leveled a new attack on the pregnant 31-year-old over the weekend.

Promoting her London Fashion Week Autumn/Winter 2013 presentation, Westwood was asked by reporters about Prince William's wife talked-about style and offered an unexpected complaint: The Duchess should recycle her outfits more often.

PHOTOS: Kate's stunning royal style

"I don't have any advice for her, [although] 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 of Middleton -- who, indeed, frequently wears the same clothing and accessories at public events.

PHOTOS: How Kate is getting ready for motherhood

Continued Westwood: "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."

PHOTOS: Kate's body evolution

The celeb-beloved designer has previously said that Middleton's eye makeup is ill-conceived. "The sharp line around her eyes make her look hard," she told London's Sunday Times Magazine. "Either she should be smudgy or wear none."

This article originally appeared on Kate Middleton Slammed by Vivienne Westwood, Designer: She Should Recycle Her Outfits More