Kate Middleton Wore These 9 Trends — and Now They're Everywhere

This old-school favorite was big on the runway and the fun little detail makes even the most structured of ensembles a bit more fun.

As Kate has demonstrated, this material works well for a formal occassion and is sexy without being too revealing.

Between dresses and shirts, we're seeing this universally flattering style everywhere — espeically on the duchess.

This cold-weather staple has had a revival! Opt for one dress form, or let your shirt peek out from under your coat just like Kate.

Kendall Jenner isn't the only fan of the belted look. Kate always adds them to her coats, defining her waist and giving a basic topper some flair.

It's no secret that Kate's true title is coat queen! Take a page from her book and trade in your neutrals for something vibrant.

Even beyond the Summer, wearing white head to toe appears sleek and stylish.

Who says everything has to be solids? Kate surprised us when she stepped out in this Erdem dress, proving that even a colorful pattern can be polished.

That rule about taking one accessory off before leaving the house? We're over it! Even Kate doubles up on bracelets and goes full-on glam at parties.