A royal style expert looks behind the seams of the Princess of Wales' new slick sartorial identity

See all of Kate Middleton's best style moments since getting engaged to Prince William in in 2010 — pics

Everyone has their closet favorites, plain and simple. And regardless of all the fresh, new (and tempting) styles that appear on the racks season after season, certain pieces simply can't be replaced. For Kate Middleton, it's a burgundy Chanel bag…

There is something happening to Kate Middleton's handbags that is 'being more Queen'. Her love of 'top handle' bags are showing us that the new Princess of Wales is now a Queen in waiting.

This $26 Amazon Essentials turtleneck sweater looks super similar to the $248 one Kate Middleton just wore — find out more

For many years, Kate Middleton has managed to hold the title of the fashion icon of Britain. Whatever the Duchess of Cambridge wears, it quickly becomes a bestseller. Even with the strict limits of royal protocol, she knows how to find unusual fashion items and bring seemingly boring things to a whole new level.

Royals have had their fair share of matching style moments, but rarely have these nearly identical looks debuted at the same event — until Mon. that is. On June 17, Kate Middleton and Queen Letizia showed up to the annual Garter Day procession in…