Mary-Kate and Ashley Olsen Twins Fashion Style at 39: A Look at the Iconic Duo Behind Quiet Luxury The Row

Mary-Kate and Ashley Olsen Twins

As Mary-Kate and Ashley Olsen approach their 39th birthday on June 13, 2025, it’s impossible not to reflect on the enduring impact the Olsen twins have had on the fashion world. Since their early days as child stars, the sisters have evolved into revered fashion icons and founders of The Row, one of the most influential luxury brands of the 21st century.

The Evolution of Mary-Kate and Ashley Olsen Twins Fashion Style

The Mary-Kate and Ashley Olsen twins’ fashion style has always been ahead of its time—minimalist, mysterious, and incredibly refined. While the Y2K era saw them experimenting with boho layers, oversized sunglasses, and eclectic accessories, their style matured into a sophisticated signature look by their late 20s. Think tailored coats, oversized silhouettes, muted palettes, and luxurious fabrics—an aesthetic that would go on to define their brand.

Mary-Kate and Ashley Olsen Twins are known for avoiding trends and instead cultivating a timeless uniform: long coats draped over slim trousers, simple black dresses, menswear-inspired shirting, and carefully chosen vintage accessories. Often seen in head-to-toe black or creamy neutrals, their approach to fashion is less about being seen and more about quiet power—what many now call “stealth wealth” or “quiet luxury.”

View this post on Instagram

A post shared by Mary-Kate and Ashley Fans (@simplyolsen)

The Row: Redefining Luxury Fashion

Founded in 2006, The Row is a direct reflection of Mary-Kate and Ashley’s fashion philosophy. Named after London’s Savile Row, known for bespoke tailoring, the brand quickly became a favorite among celebrities, editors, and minimalists alike. The Row’s pieces are deceptively simple but meticulously crafted—cashmere coats, buttery leather bags, silk tunics, and perfectly cut blazers.

At a time when logomania and influencer culture dominate the fashion space, The Row stands as a quiet rebellion. It caters to women who value quality and discretion over flashy branding. It’s no surprise that Mary-Kate and Ashley Olsen’s fashion style—both personally and professionally—continues to influence modern luxury trends, including the current rise of “quiet luxury” championed by stars like Gwyneth Paltrow and Sofia Richie Grainge.

View this post on Instagram

A post shared by Mary-Kate and Ashley Fans (@simplyolsen)

Turning 39 in Style

As the Olsen twins turn 39 on June 13, 2025, their cultural relevance is stronger than ever. The Row’s collections continue to sell out, and their personal style remains a source of inspiration on fashion mood boards and Pinterest alike. Despite stepping away from acting years ago, their influence now transcends Hollywood—they are arbiters of style in the truest sense.

What sets them apart is their ability to remain mysterious in a world obsessed with visibility. Rarely giving interviews or appearing on social media, Mary-Kate and Ashley Olsen let their work speak for itself. And it does—loudly and elegantly.

View this post on Instagram

A post shared by Mary-Kate and Ashley Fans (@simplyolsen)

A Legacy of Quiet Power

As they celebrate another year, the Mary-Kate and Ashley Olsen twins’ fashion style stands as a masterclass in restraint, elegance, and authenticity. Whether it’s through the sculptural tailoring of The Row or their personal street style moments captured in New York, their influence on luxury fashion is undeniable.

At 39, the Olsen twins are not just former child stars or reclusive designers—they are icons of modern minimalism, pioneers of a new kind of luxury, and proof that true style never shouts.