The fitting room at Celine's rue de Grenelle atelier is smaller than you'd expect

The fitting room at Celine's rue de Grenelle atelier is smaller than you'd expect. Hedi Slimane stands near the window, arms crossed, watching a model turn in a black wool coat. The shoulders sit wide — not structured in the Eighties sense, but extended, as though the body beneath had simply decided to occupy more space. He adjusts the sleeve head by half a centimetre. The coat goes back to the seamstress. He returns to the window.

This is the work. Not the runway, not the campaign shot in some derelict château outside Lyon. The work is the sleeve head, the way a lapel rolls or refuses to roll, the exact width of a trouser at the ankle. Slimane has spent two decades insisting on this point, often to rooms that would prefer he didn't.

The formation

He did not come up through fashion in the traditional sense. No Central Saint Martins, no apprenticeship under a storied couturier. Slimane studied art history and worked briefly in journalism before landing at Yves Saint Laurent in the mid-Nineties. His role, initially, was accessories and menswear under the house's ready-to-wear line. He was twenty-seven. The atelier, one suspects, did not know quite what to make of him.

What he brought was not technical training but a kind of cultural fluency — an ability to read youth movements, music, the way a certain type of young man in London or Los Angeles was beginning to dress. When he took over menswear at Dior Homme in 2000, that fluency became a commercial fact. The silhouette he introduced — narrow lapels, high armholes, trousers that skimmed the ankle — was not, strictly speaking, new. It drew from Mod tailoring, from Bowie, from the way certain musicians wore vintage Hedi had seen in Paris basements. But the execution was precise, and the timing was correct. By 2004, half the men at fashion week were wearing some version of it.

The method

Slimane's approach has always been taxonomic. He collects. Photographs, records, vintage pieces, references that accumulate in what he has described, in a rare 2019 interview with System, as "an archive of gestures." He does not sketch in the conventional sense. Instead, he works from image — a photograph he took in Berlin, a still from a Bresson film — and translates that into garment. The process is less about invention than about distillation. He is looking for the essential line, the silhouette that holds across contexts.

At Celine, which he joined in 2018, that line has been relentlessly consistent. The bourgeois minimalism of Phoebe Philo's tenure was replaced, within a season, by something harder and more specific: aviator sunglasses, leather bombers, skinny jeans, chain-strap bags in python. The shift was abrupt enough that it read, to some, as erasure. Philo's devotees mourned. The press, by and large, was sceptical. But Slimane was not interested in transition. He was interested in replacement.

The signature is rock and roll, but not in the lazy sense the phrase usually carries. It is rock and roll as a set of proportions and materials: black leather worked to a second-skin fit, silk blouses cut like men's shirts, denim treated as a tailoring fabric. The references are French — Gainsbourg, Françoise Hardy, the louche elegance of the Seventies Rive Gauche — but the execution is Californian. Clean, sunlit, stripped of ornament. Slimane lives in Los Angeles. The collections, increasingly, feel like they do too.

The signature, examined

What makes a Celine piece legible as such? Start with proportion. Slimane's tailoring sits close to the body but not tight — there is ease in the chest, through the waist, then a sharp taper at the hem. Trousers break once, lightly, at the shoe. Sleeves end precisely at the wrist bone. The effect is controlled without being rigid, a balance that requires significant pattern work to achieve. The atelier at Celine employs cutters trained in traditional French tailoring, and the garments reflect that: darts placed with surgical accuracy, seams that lie flat under tension, facings finished as though someone might see them.

Materials skew towards the durable. Leather is a constant — not the soft, slouchy nappa that dominated the Philo years, but firm calfskin and box leather that will patinate over time. Denim is selvedge, often raw. Knits are fine-gauge merino or cashmere, constructed to hold their shape rather than drape. The palette is narrow: black, ivory, camel, navy, the occasional flash of racing green or burgundy. Prints, when they appear, are geometric or archival — houndstooth, Glen plaid, a Sixties-era floral pulled from the Celine archive and re-scaled.

The handbags, which account for a significant portion of revenue, follow the same logic. The Triomphe, the Ava, the Teen Soft 16 — each is a study in reduction. No logos shouting from the front, no hardware for its own sake. The closures are discreet. The leather is thick enough to stand without structure. These are not bags designed to photograph well on Instagram, though they do. They are designed to last, to develop character, to become, over years of use, unmistakably yours.

The tension

Slimane is not universally loved. His vision is specific enough that it excludes, and exclusion, in contemporary fashion, is often read as failure. The criticism tends to focus on sameness — the sense that he is, season after season, refining the same silhouette rather than exploring new territory. There is truth in this. A Celine show in 2024 looks, in broad strokes, like a Celine show in 2019. The question is whether that constitutes a problem.

One could argue that consistency, in an industry addicted to reinvention, is itself a provocation. Slimane is not chasing trends. He is not responding to street style or TikTok or whatever the algorithm has decided is urgent this month. He is building a wardrobe, piece by piece, with the assumption that the people who want it will find it. The commercial results suggest they have. Celine's revenue has grown steadily under his tenure, driven largely by leather goods and menswear — categories that, before Slimane, barely registered.

What follows

Slimane turned fifty-five this year. He has been at Celine for six years, longer than he stayed at Dior Homme or Saint Laurent. The question of what comes next — whether he will continue refining this particular vision or attempt something else entirely — remains open. He does not give interviews with any regularity. He does not explain himself. The work, he seems to believe, should be sufficient.

In the fitting room, the coat returns. The sleeve head is correct now. The model turns again, and the coat moves with her, the shoulders holding their line without stiffness. Slimane nods. The coat is logged, photographed, sent down to the floor. He moves to the next piece. There are, one imagines, many more pieces to come.