Kate Middleton's fashion choices caused a stir at the coronation.

She wore two bespoke Alexander McQueen dresses, raising eyebrows among sustainability enthusiasts.

Royal expert Amanda Matta shared her opinion on TikTok, noting the two dresses.

Matta claimed that Kate changed into a different dress for the Coronation portraits to wear the Queen's diamonds.

The two dresses had slight differences in the neckline and embroidery, according to Matta.

Kate acknowledged that wearing two dresses wasn't a good look for a sustainable Coronation.

The event was meant to pay tribute to King Charles' love for the environment.

Matta criticized Kate's fashion choices as not being sustainable in any way.

Kate's decision to wear two dresses has caused controversy among royal watchers and sustainability advocates.