The Blue Shirt That United Royals and Fashion Elite: Is This the End of Extravagance?
In an era dominated by viral gowns and headline-grabbing couture, it is not a crystal-encrusted dress or archival tiara setting the fashion agenda for 2026. Instead, the most talked-about piece in royal and style circles this week is a crisp, powder-blue button-down shirt from the London label With Nothing Underneath. This sharply tailored Oxford shirt has been worn within days by three influential women: Kate Middleton, Princess of Wales; Meghan Markle, Duchess of Sussex; and American Vogue’s editorial heavyweight Chloe Malle.
British Royals and Vogue Editors Are Wearing the Same Blue Shirt
The light-blue button-down from With Nothing Underneath, popularly known as WNU, has appeared on multiple high-profile figures in a remarkably short timeframe. Kate Middleton wore it under a tailored blazer during a visit to Castle Hill Academy in South London to mark Children’s Mental Health Week. Chloe Malle styled it in a video interview alongside fashion icon Anna Wintour. Meghan Markle has also worn WNU shirts in the past, including a linen version on her Netflix series With Love, Meghan.
It is rare for figures from different royal households, especially ones with distinct personal brands, and a top fashion editor to converge on the same piece. This convergence speaks volumes about the shirt’s versatility and the subtle cultural momentum it has gained. In fashion terms, this is less a coincidence and more a cultural signal. When three women who define modern power dressing across monarchy, media, and Montecito reach for the same quietly confident staple, it tells us that 2026 is not about excess. It is about precision, polish, and above all, the enduring magnetism of a perfectly cut shirt.
What Makes the Blue Shirt So Appealing?
Founded in 2017 by Pip Durell, a former professional at Tatler and British Vogue, With Nothing Underneath specializes in classic shirting inspired by men’s tailoring but meticulously sized and proportioned for women. The brand was born out of Durell’s personal search for shirts that were perfectly adjusted for women, sustainably sourced, and designed to stand the test of time. After years of adjusting men’s shirts for her own use, she combined her fashion knowledge and styling credentials with her very English, effortless approach to dressing to launch the brand from her home city of London.
Today, With Nothing Underneath has grown to encompass an array of wardrobe essentials, from shirts to tailored trousers. These pieces are not led by fleeting trends or momentary style fads; instead, they are designed to be forever items that promote a life of simplicity and elegance. The brand’s aesthetic is pared back, laid back, timeless, and effortless, drawing inspiration from icons like Carolyn Bessette, Jane Birkin, and Charlotte Rampling.
The label’s success is measurable, with £5.7 million in sales in 2024 and an impressive 88% growth over three years. It ranked 52nd on The Sunday Times Hundred list of fastest-growing UK private companies. These numbers suggest that WNU is more than a fleeting celebrity endorsement; it is a brand on the rise, helping to define a moment in style that blends classic elegance, accessibility, and modern wardrobe versatility.
The Fashion Impact Beyond the Blue Shirt
The "Royal effect" still holds significant sway in the fashion world. Kate Middleton’s sartorial choices have long influenced high street fashion, an impact often referred to as the Kate effect, which can boost British brands by hundreds of millions annually. This influence is not limited to high-end labels; mainstream retailers are seeing similar spikes in demand. For example:
- Marks & Spencer’s £30 ice-blue satin shirt
- Uniqlo’s bestselling oversized blue cotton shirt
These accessible pieces benefit when "royal style" filters down to everyday wardrobes, making high fashion more attainable for the general public. This moment also fits into a wider fashion pattern emerging in early 2026. Light-blue button-downs are increasingly featured in style guides as versatile essentials suitable for both office and casual wear. Colour combinations like pale blue with chocolate brown are being touted as must-try seasonal pairings, reinforcing the shirt’s adaptability.
Meghan Markle has long embraced similar shirting pieces, highlighting that timeless tailoring, especially shirts, remains central to polished and "quiet luxury" wardrobes. This trend underscores a shift away from flashy, extravagant items toward understated, quality basics that offer longevity and sophistication.
Why the Blue Shirt Is Trending Now
This phenomenon is not just about one shirt; it represents how royal wardrobes can shape global fashion trends. It marks a rare fashion overlap between two of the most watched public figures of the decade—Kate Middleton and Meghan Markle—and highlights how quality basics, rather than only flashier pieces, can become cultural touchpoints. The blue button-down’s resurgence as an icon of quintessential British style signals a broader move toward precision, polish, and enduring elegance in fashion, suggesting that 2026 may indeed be the end of extravagance in favor of timeless, versatile staples.
