With a host of Bond Girls to compete with, the Duchess of Cambridge turned on the glitz and glamour at the world premiere of the new 007 film 'Spectre.'

Kate Middleton stunned in a powder blue dress at the London premiere of the upcoming James Bond film on October 26. While she looked beautiful as ever, one thing stood out: the Duchess was braless! It was a bold move for someone of such high status, but Kate still managed to look sophisticated.

The elegant dress by her go-to evening wear designer, Jenny Packham featured a crossover chiffon front and modest V-neck while the delicate draping at the back of the gown flashed a hint of Kate's lower back.

Providing a little bit of an edge to a super classy dress, the sheer fabric exposed her back, which also exposed the fact that Kate wasn’t wearing a bra. Of course, Kate Middleton still looked incredibly elegant, but it definitely was a risky choice.

Meanwhile, an intricate beaded band around the waist helped highlight Kate's slender frame.

This is the third time this year the princess has chosen British designer Jenny Packham, who has clearly become one of her favorites. She originally wore the brand back in May when leaving the hospital with Princess Charlotte and then again just recently for the Chinese President's visit to the United Kingdom.

To top off her look, Kate wore a clutch by the same brand, earrings by Robinson Pelham and Jimmy Choo platform heels. The silver sandals from the luxury brand are a favorite of the Duchess's and a look she has recycled many times before.

Instead of leaving her famous brunette curls down, she pulled them up into an elaborate plaited bun.

This may be the first time the public have ever seen Kate try the braless look, but this is definitely a hot trend. From Kendall Jenner‘s numerous no-bra outings to Selena Gomez‘s sexy outfits, some of the hottest women in Hollywood are opting for the braless style. In fact, there was even a National No Bra Day on October 13.