Shoshanna Lonstein has a story that extends well beyond the celebrity headlines that once followed her name. Today, she is recognized as a fashion designer, entrepreneur, and philanthropist who built the Shoshanna brand into a long-running business after launching it in 1998.
Her route into fashion wasn’t exactly traditional. After earning degrees in History and Art History from UCLA, Shoshanna gained practical experience in New York’s garment industry before creating her own label. That experience gave her an understanding of everything from fabric sourcing to garment construction, knowledge that would become central to the way she approached design.
Over the years, her collections have become known for feminine designs, distinctive details, and an emphasis on fit. Her swimwear, in particular, helped set her brand apart by offering swimsuit tops and bottoms separately with lingerie-inspired sizing.
In 2026, Shoshanna remains involved with the fashion business she founded more than two decades ago. Her story is ultimately one of turning a personal frustration with clothing into a lasting career in fashion.
Quick Bio Information
| Detail | Information |
|---|---|
| Full Name | Shoshanna Lonstein Gruss |
| Birth Name | Shoshanna Mara Lonstein |
| Birth Date | May 29, 1975 |
| Birthplace | Manhattan, New York City |
| Age in 2026 | 51 |
| Profession | Fashion Designer, Entrepreneur, Philanthropist |
| Brand | Shoshanna |
| Brand Founded | 1998 |
| Education | University of California, Los Angeles |
| Degrees | History and Art History |
| High School | Nightingale-Bamford School |
| Known For | Fashion Design and Swimwear |
| Swimwear Launch | Spring 2001 |
| Eveningwear Line | Shoshanna Midnight |
| Children | Three |
| Former Husband | Josh Gruss |
| Divorce | 2014 |
| Current Professional Role | Founder and Creative Director of Shoshanna |
| Main Base | New York City |
Who Is Shoshanna Lonstein?
Shoshanna Lonstein Gruss is an American fashion designer and entrepreneur best known as the founder and creative director of the Shoshanna fashion brand.
The label debuted in stores in November 1998, initially attracting attention for women’s dresses that combined feminine styling with a strong emphasis on fit. Her approach was shaped in part by her own difficulty finding clothes that suited her body, giving the brand a practical purpose from the beginning.
Over time, the company expanded into swimwear, children’s clothing, eveningwear, and other fashion categories. The brand remains active today, with its 2026 collections continuing to be sold through its official website.
Shoshanna Lonstein’s Early Life and Manhattan Roots
Shoshanna was born on May 29, 1975, and grew up in Manhattan. Her New York upbringing would later become an important part of her identity as a designer and business owner.
She attended the Nightingale-Bamford School on Manhattan’s Upper East Side before heading to college. Her years in New York exposed her to the city’s distinctive mix of fashion, culture, retail, and social life, all of which would eventually influence her professional direction.
Fashion, however, wasn’t initially a straightforward career plan. As a young woman, Shoshanna became increasingly aware of how difficult it could be to find clothing that offered both style and a flattering fit. That experience eventually became one of the driving ideas behind her business.
Shoshanna Lonstein’s Education at UCLA
Shoshanna attended UCLA and graduated in 1997 with degrees in History and Art History. Her time in Los Angeles proved to be an important turning point because it introduced her to a fashion environment that was different from the one she had known growing up in New York.
While studying at UCLA, she worked part-time at Tracey Ross in West Hollywood. The experience gave her a closer look at independent fashion retail and helped her realize that a designer didn’t necessarily have to begin with a massive company or traditional fashion-school background.
After graduation, she returned to New York and began learning the clothing business from the production side. That decision would prove crucial to the future of her brand.
How Shoshanna Lonstein Started Her Fashion Career
Instead of jumping straight into entrepreneurship, Shoshanna spent time learning how clothing was actually made.
After graduating from UCLA, she worked in a New York lingerie factory, where she learned about design, fabric sourcing, garment construction, and the practical details of production. UCLA’s own account of her career describes that experience as an important part of her preparation for launching her business.
That hands-on education helped bridge the gap between having an interest in fashion and understanding how to turn an idea into a finished garment.
Her early experiences also reinforced something she already knew personally: women needed clothing that looked good but worked with their bodies rather than against them.
The Birth of the Shoshanna Fashion Brand in 1998
The Shoshanna label officially launched in November 1998. Its early collections focused on women’s dresses, with designs that combined feminine fabrics and prints with structural elements intended to provide support and a better fit.
Contemporary coverage from the Los Angeles Times described the young designer’s use of materials and construction techniques inspired by lingerie, including boning and corset-like details. Those choices reflected her goal of creating clothing that was attractive without sacrificing support.
The brand gained traction quickly. By 1999, contemporary reporting had already documented strong sales and distribution through major retailers. The early momentum suggested that consumers were responding to the clothes themselves, not simply to the designer’s public profile.
That distinction mattered. Shoshanna had entered the public eye for personal reasons, but she was beginning to establish herself professionally on her own terms.
How Shoshanna Changed Swimwear With Inclusive Sizing
One of the defining moments in Shoshanna’s career came with the launch of her swimwear collection in Spring 2001.
The brand introduced swimsuit tops and bottoms as separates and used lingerie-inspired sizing. Rather than expecting every customer to have identical proportions, the system allowed shoppers to select different sizes for different parts of a swimsuit.
It was a straightforward idea, but it addressed a common problem. Many women don’t fit neatly into a single standardized swimsuit size, and Shoshanna’s approach gave them more flexibility.
The company’s official biography describes the move as an early example of inclusive sizing in swimwear, while UCLA’s coverage also identifies the 2001 collection as a significant milestone in the brand’s development.
That focus on fit became one of the most recognizable features of Shoshanna’s work.
From Dresses to Family Fashion
As the company grew, Shoshanna expanded beyond its original women’s dress collection.
Following the birth of her first child in 2005, she introduced Shoshanna Baby Girl, a children’s swimwear line that included matching mother-and-daughter swimsuits. The collection later expanded into boys’ swimwear after the birth of her son.
The expansion made sense within the brand’s existing identity. Swimwear had already become an important part of the business, and Shoshanna’s own experience as a mother gave her a natural perspective on the family side of the category.
Rather than abandoning the company’s original focus, the children’s collections extended it into another stage of family life.
Shoshanna Midnight and the Move Into Eveningwear
In 2015, Shoshanna launched Shoshanna Midnight, a separate eveningwear collection featuring gowns and formal dresses.
The move came from her belief that there was room in the market for eveningwear that felt special without becoming inaccessible. According to the brand’s official biography, the collection was introduced with pieces priced below $800.
The launch also demonstrated how the company had evolved. What began primarily as a women’s dress label had developed into a broader fashion business with ready-to-wear, swimwear, children’s clothing, and formalwear.
Through those changes, the brand’s emphasis on feminine design and fit remained consistent.
Shoshanna’s New York Fashion Philosophy
New York has never been just a backdrop to Shoshanna’s career. It’s part of the company’s identity.
As a Manhattan native and New York business owner, Shoshanna has emphasized local production and the importance of supporting the city’s garment industry. In 2016, the brand received the Made in NY mark of distinction. The company says several pieces from its ready-to-wear, eveningwear, and swimwear collections are made in the United States, while its headquarters remain in New York City.
That connection to New York also reflects the way Shoshanna learned the business. She returned to the city after college, worked in its garment district, and built her company there.
For her, fashion has always been about more than appearance. Fit, construction, practicality, and the experience of the woman wearing the finished piece all matter.
Major Collaborations and Career Milestones
Shoshanna’s career has included partnerships with established names in fashion and beauty.
In Fall 2013, Elizabeth Arden appointed her as the company’s first-ever Style Director. In that role, she worked as a spokesperson, content curator, and style ambassador, collaborating with the beauty company on areas including trend forecasting, design, and innovation.
The brand marked its 20th anniversary with an exclusive capsule collection for Saks Fifth Avenue. The six-piece collection included both ready-to-wear and swimwear.
In 2018, Shoshanna partnered with New York-based accessories company Hat Attack on a vacation collection featuring accessories that incorporated prints from the Shoshanna Swim 2019 collection. The pieces were sold through retailers including Anthropologie, Shopbop, and Zappos.
The following year, Shoshanna partnered with Gwynnie Bee to launch C’est Nous, an exclusive line featuring extended sizing. That collaboration continued a commitment to size diversity that had been part of her swimwear business since the early 2000s.
Shoshanna Lonstein’s Celebrity Following
Shoshanna’s designs have attracted a high-profile group of celebrity fans over the years.
The brand’s official biography names Mindy Kaling, Isla Fisher, Kelly Ripa, Meghan Markle, Lupita Nyong’o, Jessica Alba, Reese Witherspoon, and Sasha Obama among those who have worn Shoshanna designs.
Her collections have also been sold through major retailers, including Bergdorf Goodman, Neiman Marcus, Nordstrom, Saks Fifth Avenue, Bloomingdale’s, Shopbop, and Anthropologie. The company says its clothing has been available through more than 500 specialty boutiques and stores across the United States, Canada, Europe, and Asia.
That retail reach helps put the longevity of the business into perspective. The Shoshanna name isn’t limited to celebrity dressing; it has developed into a broader consumer fashion brand.
Shoshanna Lonstein’s Relationship With Jerry Seinfeld
Shoshanna’s relationship with comedian Jerry Seinfeld remains one of the most widely discussed parts of her early public life.
The two began dating in the 1990s when Shoshanna was a teenager and Seinfeld was in his late 30s. Their age difference attracted considerable media attention, and contemporary newspapers and television reports followed the relationship closely.
The relationship lasted several years and ended in 1997. By the time Shoshanna’s fashion career began attracting serious attention, the relationship was already over. Contemporary coverage increasingly focused on her clothing business and her development as a designer.
That distinction is worth making because the relationship may have brought early visibility, but it wasn’t what ultimately sustained her career. Her clothing company continued to develop for decades afterward.
Shoshanna Lonstein’s Marriage, Children, and Family
Shoshanna married Josh Gruss in 2003. They had three children, and the couple later divorced in 2014.
Her family life also intersected with her work. After becoming a mother in 2005, she introduced Shoshanna Baby Girl and matching mother-and-daughter swimwear. The brand subsequently expanded into boys’ swimwear as well.
Motherhood therefore wasn’t simply a separate part of her personal life. It also influenced the direction of her business and helped open another category for the company.
Shoshanna has generally kept her children’s lives relatively private compared with the public attention she received earlier in her career.
Shoshanna Lonstein’s Philanthropic Work
Fashion isn’t the only area where Shoshanna has remained active. She has also devoted time to philanthropic and community organizations, particularly those connected to New York.
Her official biography identifies her involvement with the Society of Memorial Sloan Kettering, where she has served as a chairwoman, as well as The Blue Card and other New York City organizations.
She has also remained connected to the Nightingale-Bamford School, serving on its board. The school, located on Manhattan’s Upper East Side, was part of her own education and has continued to be an important part of her connection to the city.
For Shoshanna, giving back is closely tied to the community in which she was raised. Her philanthropic work adds another dimension to a career that is often discussed primarily through fashion and celebrity coverage.
Shoshanna Lonstein’s Net Worth
Shoshanna Lonstein’s exact net worth isn’t publicly verified through audited financial records.
Celebrity-focused websites have published estimates of approximately $50 million, but that figure should be treated as an estimate rather than a confirmed amount. There isn’t enough publicly available financial information to establish a definitive personal net worth.
Her long-running fashion business is clearly an important part of her professional profile. The company has operated since 1998, expanded into several categories, established relationships with major retailers, and developed an international customer base.
Still, it’s important not to turn an online estimate into a fact. When discussing Shoshanna Lonstein’s wealth, the most accurate wording is that her net worth has been estimated at around $50 million by celebrity wealth sites.
Where Is Shoshanna Lonstein Now?
Shoshanna remains closely connected to the fashion business she founded. The official Shoshanna website continues to feature current collections, including Spring 2026 and Resort 2026, confirming that the brand remains active.
Her current professional identity is therefore still rooted in fashion. She continues to be associated with the brand as its founder and creative director, while the company maintains its New York base.
Her life today looks very different from the period when she was primarily known through tabloid coverage. More than 25 years after launching her label, her fashion company remains the central part of her public career.
Shoshanna Lonstein’s Lasting Legacy in Fashion
Shoshanna Lonstein’s career stands out because she turned a very personal problem into a business opportunity.
She knew firsthand how frustrating it could be to find clothing and swimwear that fit properly. Instead of simply accepting those limitations, she learned the mechanics of garment production, built a collection around fit, and eventually created a brand that expanded into multiple categories.
Her swimwear separates, lingerie-inspired sizing, extended-sizing collaborations, and continued focus on feminine design all reflect the same underlying idea: clothing should work for the person wearing it.
That philosophy helped distinguish Shoshanna from the beginning. Contemporary coverage of her early career recognized that her celebrity connection might have generated attention, but the quality and commercial appeal of the clothing were what allowed the business to move forward.
Final Thoughts
Shoshanna Lonstein’s story is far more expansive than the celebrity relationship that first brought her into the public eye.
She studied History and Art History at UCLA, learned the clothing business from the ground up, and launched Shoshanna in 1998. From there, she built a fashion company around feminine design, distinctive details, and a strong emphasis on fit.
Her work in swimwear became particularly influential within her own brand, while later collections such as Shoshanna Baby Girl and Shoshanna Midnight allowed the company to grow alongside changing consumer needs.
Today, the Shoshanna brand remains active, with 2026 collections available through its official website. That longevity may be the clearest measure of Shoshanna Lonstein’s professional achievement.
The story that began with a young woman trying to solve her own fashion frustrations ultimately became a decades-long career. And while the headlines from the 1990s remain part of her biography, her lasting identity is that of a designer who built a business in her own name and kept it moving forward.
Frequently Asked Questions
How Old Is Shoshanna Lonstein?
Shoshanna Lonstein was born on May 29, 1975. She is 51 years old in 2026.
What Is Shoshanna Lonstein Known For?
She is best known as the founder and creative director of the Shoshanna fashion brand. The company launched in 1998 and became particularly recognized for women’s dresses and swimwear.
Where Did Shoshanna Lonstein Go to College?
Shoshanna attended the University of California, Los Angeles, where she graduated in 1997 with degrees in History and Art History. While at UCLA, she also worked part-time at Tracey Ross in West Hollywood, an experience that helped shape her interest in the fashion business.
When Did Shoshanna Lonstein Start Her Fashion Brand?
The Shoshanna brand debuted in stores in November 1998. Her early collection focused on women’s dresses and emphasized fit, feminine styling, and distinctive details.
Why Is Shoshanna Swimwear Notable?
Shoshanna launched her swimwear collection in Spring 2001. The brand became known for selling swimsuit tops and bottoms separately with lingerie-inspired sizing, giving customers greater flexibility when choosing a fit.
Was Shoshanna Lonstein Married?
Yes. Shoshanna married Josh Gruss in 2003. They had three children before divorcing in 2014.
How Many Children Does Shoshanna Lonstein Have?
Shoshanna Lonstein has three children. Her first child was born in 2005, and the arrival of her children later influenced the expansion of the Shoshanna brand into children’s swimwear.
What Is Shoshanna Lonstein’s Net Worth?
Some celebrity wealth websites estimate Shoshanna Lonstein’s net worth at around $50 million. However, there are no publicly available audited financial records establishing that figure, so it should be treated as an estimate rather than a confirmed amount.
What Is Shoshanna Lonstein Doing Now?
Shoshanna remains involved with the Shoshanna fashion brand, which continues to release current collections in 2026. The company’s official website lists her as its founder and creative director, and the brand continues to operate from New York.
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