La Ligne will introduce its first personality-led, codesigned collaboration with actor, singer, director and longtime brand muse Dianna Agron, launching Thursday.

The capsule marks an evolution in a relationship that has spanned nearly a decade. The 39-year-old Agron, best known for her appearance as Quinn Fabray in the hit TV series “Glee,” was one of the first individuals featured in a La Ligne campaign. Her friendship with La Ligne cofounder and chief executive officer Molly Howard served as the foundation for a collaborative design process.

In a Zoom interview this week, Agron and Howard spoke about their friendship and the design of the capsule.

“We were luckily set up by two of our guy friends who very cleverly understood that we would become best friends immediately,” said Agron, speaking from Burgundy, France. “We had a friend dinner date that led to two or three eventual dinner dates and that was that. And in true Molly spirit, she is a very generous friend, and she just really wants to fold you into every aspect of her life. So I met her friends, her family, her doctors, her New York community… and I watched her build this brand with Meredith [Melling] and Valerie [Macauley] from the ground up, and it was just thrilling because we all got to be a part of that as well.”

Howard said, “Designing this collection with Dianna felt like a natural evolution of our friendship and her longtime connection to La Ligne. She has incredible style — understated, elegant, with just the right amount of edge — and that really comes through in every piece. The whole process was easy and fun, and the end result feels like such a true reflection of her.”

According to Howard, Agron has always been someone whom she’s looked to for style inspiration. “She’s so not influenced by what other people are doing and knows exactly how to take risks and how to push fashion forward.”

The 19-piece collection features entirely new silhouettes, and a fresh interpretation of La Ligne’s signature style. Agron’s influence can be seen in details from the fabric selection to the shapes.

Key pieces include the Ava Trench in tan and the cinched-waist Joan jacket and coordinating Joan trouser in black, offering a tailored foundation for fall dressing. There are also dresses such as the romantic Audrey dress, available in both classic black and a soft mauve gray, and the minimal Hedy dress in black. Knitwear includes the Dianna Cardigan and Dianna Tank available in black/cream and rust/ blue smoke, and the Lena sweater, a stripe-forward update offered in ivory/black and rust/blue smoke. The collection also includes the Ingrid shirt and skirt in both chalk blue and ivory, and the Jane top and Jane skirt in amber tone.

“This collection is incredibly personal to me,” said Agron. “It was a joy to create something that reflects my style, while staying true to the essence of La Ligne — timeless, wearable, and effortlessly chic.”

The campaign was shot in one day in Paris by photographer Liza Voloshin, with styling by Louise Ford and beauty by makeup artist Yvane Rocher and hairstylist Thibaud Salducci.

The capsule will be available starting Thursday exclusively on lalignenyc.com and at La Ligne retail locations. The brand has seven freestanding stores and is about to open an eighth store in Nashville on July 25.

Agron said that over the last five years she’s really come into her own style. As a young person, she would watch old films and her perspective of high glamour was shaped by Audrey Hepburn dressed by Hubert de Givenchy in “Funny Face,” or films with Sophia Loren looking perfect in gorgeous silhouettes.

“And as I moved into my own career and acting, there was a lot of confusion around what works as it related to buying contemporary clothes and mixing it with vintage pieces, and how to make vintage pieces wearable so that you don’t look like you’re trying to be of another era.”

As she matured, she gravitated to pieces that felt well-made and well-crafted. “And that is what I love about what Molly and Valerie are doing at La Ligne; that is the intention behind the pieces that they’re making,” said Agron, noting she still has pieces from their first year in business and that their clothes wash and wear beautifully.

Howard noted that Agron will pack a bag to go away for a week and end up staying a few months. “She’s so good at putting together her wardrobe and her uniform. She’s so great at mixing pieces together and knows what works for her. So what we’ve designed is basically an extension of that,” said Howard.

One of Agron’s favorite pieces in the collection is the trench. “The beauty of the trench is you could wear nothing under it, or as many layers as fit,” said Agron. She said the trench is designed to be lightweight and flexible and the fabric is soft and a “beautifully lined piece.”

She also likes the the high-waisted pencil trouser and crop jacket. “And just the fabric of these two are so lovely with the striped tank underneath. While I really do love leaning into a feminine way of dressing, suiting is just where I feel very comfortable. This with a pair of flats. You can walk 16 miles on any given day in Paris…walking through parks and visiting museums. I wore the rust and blue cardigan over the light blue top and skirt that we made, and I felt very charming,” said Agron, who has been going back and forth between Paris and Burgundy this summer.

Howard said that knitwear is a large part of La Ligne’s business on the whole, and she said Agron did a great job of focusing on fabrication, fit and obviously stripes “and making them into pieces she would wear.”

Howard described he collaboration with Agron as very collaborative. “So even if we presented 10 different fabrics, she [Agron] was very explicit on what she liked about some of them, what she didn’t like, line placement, detail, every button, every button placement and every button material,” said Howard. She said Agron wanted to understand everything “about duties and cost of fabrics and how we were making it,” said Howard.

Agron said that she’s never designed anything before, but “as someone who steps behind the camera a lot as a director, you really have to understand so much about storytelling.” She also learned a lot from her mother [who sewed] at a very young age and would watch her craft things from scratch.

“So between watching that in the home and seeing that on set and working with costume designers that I so deeply admire…it was so absolutely joyful to be able to step into this role of collaborator with these women that I admire so much…I’m so curious, and I always want to just learn to the full extent of the experience,” said Agron.

Agron said that they had nine or 10 meetings over the course of the last year in La Ligne’s New York office to develop the capsule. She particularly loved the color combination of the rust and icy blue. “Every time I look in my closet — and I wore it to my friend’s performance the other day in Paris — I thought, ‘what a gorgeous color combination.’”

Prices on the capsule range from $95 for the Sophia tank to $495 for the Ava trench.

In describing her inspiration, Agron said she really wanted the stripe to be at the heart of it since it’s the origin of La Ligne, and it was important to her that the looks were interchangeable. She also designed it with a neutral palette so it would work well in the summer/early fall.

Howard said the capsule is geared to an extension of their existing customer. She said there was “a real focus on timeless, classic, usable, versatile pieces, really high quality, with major attention to fit and detail, but really elevated. It’s not clothing that overwhelms you and wears you.” She said her customer pays attention to how she looks and is focused on what she wears. “She cares about fashion, but she’s not like a fashion victim. She’s not driven by trends and what TikTok is telling her to wear. She’s driven by these really timeless, effortless pieces, which I think is exactly what this collection is.”

The collection is manufactured all over the world in China, Vietnam, Portugal, Peru and New York, said Howard. Agron’s name will be on the La Ligne label and hangtag.

In addition to designing the capsule, Agron just wrapped up starring in a movie called “Flint,” which is a late 1800s Western thriller that was filmed in Montana and will be released next year.

Howard said that besides Nashville, she plans to open one more store by the end of the year, and hopefully by the company’s 10th anniversary next April, their 10th store will open. “We’re running ahead of last year. We’re having a great year,” said Howard. She said the business has been up every year since they started.