Marie Claire is supported by its viewers. When you order by inbound links on our website, we could gain fee on some of the objects you opt for to purchase. &#13 &#13 &#13 The best hair on the world? We believe so… Kate Middleton’s hair has been the topic of numerous discussions over the decades – from her protocol-breaking wedding hair to her most influential hairstyle of all time. Now, the query on everyone’s lips is how to get wavy hair like the Duchess in her 40th birthday portraits. We’re not exaggerating, queries for how to get wavy hair have long gone wild. On January 9th, the Duchess of Cambridge’s…