The fitting room at Celine's avenue Montaigne headquarters is smaller than one might expect

The fitting room at Celine's avenue Montaigne headquarters is smaller than one might expect. Hedi Slimane stands near the window, arms crossed, watching a model turn in a black wool coat with sleeves that stop precisely at the wrist bone. He says nothing for thirty seconds. Then: "Encore." She turns again. He nods once, and the fitter begins pinning the shoulder seam a quarter-inch higher.

This is how most of Slimane's collections take shape — not in grand gestures, but in these small, obsessive calibrations. Since his arrival at Celine in 2018, he has redrawn the house entirely, replacing Phoebe Philo's intellectual minimalism with his own strain of rock-and-roll classicism. The move alienated many. It also worked.

Formation

Slimane did not train as a designer. He studied art history at the École du Louvre, then political science, with no clear ambition toward fashion. His entry came sideways: an assistant role at Yves Saint Laurent in the early nineties, initially focused on press and image rather than garments. But he was observant. He watched the atelier, absorbed the codes, and when José Levy left Saint Laurent Rive Gauche Homme in 1996, Slimane was offered the position. He was twenty-eight.

What followed was a seven-year tenure that redefined menswear proportions. Slimane cut shoulders narrow, trousers slim, and jackets short — a silhouette borrowed from Mick Jagger and David Bowie rather than from the broader-shouldered nineties. The look was divisive. Some critics called it effete. Others recognised it as the first convincing answer to the question of what young men might actually want to wear in the early 2000s.

When Slimane left Saint Laurent in 2000 — citing, among other things, his desire to work independently — he spent two years on photography and music projects before Dior offered him the newly created role of artistic director for Dior Homme. There, he sharpened the same vocabulary: black suiting, skinny ties, sharp lapels, a studied androgyny. The Dior Homme shows became known less for innovation than for consistency of vision. Slimane was not interested in reinvention each season. He was building a uniform.

The Saint Laurent return

In 2012, after a four-year absence from fashion, Slimane returned to lead Saint Laurent — this time across all categories, menswear and womenswear both. The appointment was contentious from the start. He dropped "Yves" from the logo, a decision that felt to many like an unnecessary provocation. He relocated the design studio from Paris to Los Angeles. And he replaced the house's languid, Left Bank aesthetic with his own tighter, more rock-inflected codes.

The criticism was loud. Cathy Horyn, then at The New York Times, called an early collection "a lot of clothes but not a lot of ideas." Suzy Menkes wrote that the silhouettes felt "regressive." Slimane, characteristically, did not respond. He kept working. Over four years, Saint Laurent's revenue doubled. The clothes sold.

What Slimane understood, and what his critics often missed, is that fashion operates on two registers: the intellectual and the commercial. A collection can be formally conservative and still succeed if it is executed with enough precision and marketed with enough clarity. Slimane's Saint Laurent was not adventurous. It was exact. The same black leather jacket appeared season after season, with minor variations in lapel width or zipper placement. This was not laziness. It was strategy.

Celine

When LVMH announced Slimane's appointment at Celine in early 2018, the response was swift and largely negative. Phoebe Philo had spent a decade building Celine into the intellectual's luxury house — quiet, cerebral, expensive in ways that required no signalling. Her departure, and Slimane's arrival, felt like a betrayal to the house's core audience.

Slimane's first show, in September 2018, confirmed their fears. Gone were Philo's wide trousers and considered drape. In their place: mini skirts, skinny jeans, leather jackets, and a general aesthetic that looked less like Celine than like Saint Laurent with a different logo. The bourgeois maturity that had defined the house under Philo was replaced by a younger, more explicitly sexualised vocabulary. Critics were unsparing. The Guardian called it "a vulgar dismissal of everything Celine had been."

But LVMH had not hired Slimane to please critics. They hired him to grow revenue. And he has. Celine's sales increased roughly 20 per cent in his first full year, driven largely by accessories and a younger customer base. Slimane introduced menswear, expanded the handbag line, and opened new categories — fragrances, eyewear, a high-jewellery atelier. He also moved production in-house where possible, investing in Celine's own workshops rather than relying on external suppliers.

The clothes themselves remain polarising. Slimane's Celine is not subtle. The silhouettes are tight, the references obvious: Joni Mitchell, Patti Smith, the Sunset Strip in 1975. A recent collection featured flared jeans, crochet tops, and platform boots — clothes that feel less like a response to contemporary fashion than a wilful ignorance of it. This, too, is strategy. Slimane has never been interested in conversation. He works in monologue.

Signature

If there is a through-line in Slimane's work, it is control. He art-directs every campaign, often shooting them himself. He designs the stores, selects the music for the shows, and maintains final approval over press images. This level of authorship is rare in contemporary fashion, where creative directors increasingly share responsibility with brand consultants and marketing teams.

The result is a body of work that feels coherent, even when individual pieces do not. A Slimane collection is rarely surprising, but it is always legible. You know what you are getting: black leather, slim tailoring, a certain androgynous cool that borrows equally from rock music and French classicism. Whether this constitutes a signature or a limitation depends on one's expectations.

What next

Slimane is now in his sixth year at Celine, longer than his tenure at Dior Homme and approaching the length of his Saint Laurent run. The question is whether he will stay. His contracts have historically been short, and his departures abrupt. There is also the matter of succession: LVMH has been clear that they see Celine as a multi-billion-euro house, on par with Dior or Louis Vuitton. Whether Slimane's aesthetic can sustain that scale remains uncertain.

For now, he continues to work in the same tight radius he always has. The collections evolve slowly, if at all. The codes remain fixed. And the fittings at avenue Montaigne proceed in near silence, one quarter-inch adjustment at a time.