Leave it to Kate Middleton to make a simple cardigan look royally chic. The Princess of Wales stepped out in a cozy taupe knit that's a timeless staple every fall wardrobe needs. Naturally, we're taking style notes - and snagging this chic $40 version while it's still in stock. During a royal outing in Ireland, Middleton embraced full-on countryside chic. She styled her Yak wool cardigan from With Nothing Underneath with a tweed Ralph Lauren skirt, a woven belt, an olive outdoor jacket and black riding boots.