You want to know where men’s fashion is heading? Follow the geeks.

These are the obsessives, fixated, with a NASA technician’s precision, on how their pants fit or on which pair of Paraboot shoes is the correct pair. These are the obsessives who in the aughts were early to selvage denim (now available at a Uniqlo near you!) and soft-shouldered Italian tailoring in the mode that, eventually, trickled down to your local J. Crew.

And where has the attention of this cohort landed now? On a vanguard of newish-to-the-West labels from Japan, like A.Presse, Comoli, Auralee and T.T.

“I’m not really experimenting with my style anymore,” Mr. Kirkland said. “I’m just wanting really good, basic stuff.”

Basic though these clothes appear, their hook is that they’re opulent to the touch, elevated in their fabrication.

And so there is a hobbyist giddiness present on Discord channels where 30- and 40-something men trade tips on how to size moleskin trousers by the Japanese label Comoli; at boutiques like Neighbour in Vancouver, British Columbia, where items like a $628 dusty pink trucker jacket from Yoko Sakamoto and an $820 T.T sweater sell out soon after hitting the sales floor.

What’s notable is how swiftly these geeky preferences have wiggled into the broader fashion community. While I was in Paris for the men’s fashion shows a year ago January, all anyone wanted to talk about were things with a “Made in Japan” tag. I would speak with editors who were carving out room in their suitcases for Auralee’s $3,000 leather jackets.

But these were clothes being shown away from the fashion week hordes. The A.Presse showroom was on a Marais side street in a space about as long as a bowling lane and scarcely wider that was crammed with racks of canvas, silk and denim jackets with Pollock-like paint splatters. There were leather jackets as plush as Roche Bobois sofas and hoodies based on sweatshirts made in America a half-century ago.

I got the hype. After 10 days of puzzling over newfangled stuff on the runways, the display of simple, understandable shapes we’ve known our whole lives, but redone with extra care, couldn’t have felt more welcome.

Kazuma Shigematsu, the A.Presse designer, said he had collected a trove of vintage pieces that he housed in a separate space to plumb for inspiration. He made new clothes based on old clothes that benefited from a century of small design tweaks.

By this January, A.Presse had upgraded to a regal maison facing the Place des Vosges, with giant windows and even more reverent hoodies, even more tender leathers. Back in America, I asked an online department store executive what his favorite thing from Paris was. He took out his phone to show me photos of himself trying on a zip-up leather jacket in A.Presse’s high-ceilinged showroom.

On Their Own Terms

“A couple years ago, we would have to buy off the line sheet or go to Japan and see everything,” said Saager Dilawri, the owner of Neighbour, who has an instinct for what spendy, creative types lust after. “Now I think everyone from Japan is trying to go to Paris to get into the international market.”

This movement’s “Beatles on Ed Sullivan” moment occurred in 2018, when Auralee won the Fashion Prize of Tokyo, granting the designer, Ryota Iwai, financial support. Soon after, Auralee was given a slot on the Paris Fashion Week calendar.

“I had never seen a show before, never thought to do it,” Mr. Iwai said through a translator in February, days after his latest runway show. He has now done five.

As we talked, buyers speaking different languages entered his storefront showroom and ventured upstairs to scrutinize items like a trench coat that looked as if it was made of corduroy but was actually made from cashmere and wool and an MA-1 bomber jacket with a feathery merino wool lining peeking out along the placket.

Rather, as with the Antwerp Six design clique that sprung out of Belgium in the early 1980s, it is these labels’ origin stories that thread them together.

“They’re being encountered on their own terms and respected on their own account, and they happen to be Japanese,” said W. David Marx, the author of “Ametora: How Japan Saved American Style” and a cultural critic who has lived in Tokyo for more than two decades.

“It is a new era of Japanese fashion on the global stage,” Mr. Marx said.

A Love Affair With Japan

Western shoppers have a history of falling hard for clothes from Japan. In 1981, when Rei Kawakubo of Comme des Garçons and Yohji Yamamoto crashed onto the Paris fashion scene, buyers swooned for their brainy, body-shrouding creations.

Along the way, “Made in Japan” became a shorthand for “made well.” This was more than fetishization. As America’s clothing factories became empty carcasses pockmarking the heartland, Japan’s apparel industry grew steroidal.

“Japan still has an incredible manufacturing base for apparel that goes all the way from the textiles to the sewing to the postproduction,” Mr. Marx said.

Today, many Japanese labels produce most of their garments and, crucially, their textiles in Japan. When I first met Mr. Iwai years ago, I asked how he managed to create such lush colors. He answered, as if noting that the sky was blue, that he worked with the factories that developed his fabrics. As I spoke with Mr. Sato in January, he shared that Cale’s factory had been in his family for generations and also produced for other Japanese brands that I would know.

Chris Green, the owner of Ven. Space, a boutique in the Carroll Gardens neighborhood of Brooklyn that has helped to introduce a number of these labels to an American market, suggested that because Japan is a small country with a fervent fashion culture, a competitive spirit has been stoked.

“They have to be able to cut through the noise,” Mr. Green said, with brands trying to prove that their cashmere sweater can outclass their peers’, that their silks are sourced from finer factories. What’s more, he said, once these brands have nailed a design, they stick with it. That is something that is important to men, in particular, who hate when a brand abandons its favored pants after a season.

Before he opened Ven. Space in 2024, Mr. Green was an admirer of many of these labels, purchasing them during trips to Japan. As we spoke, he was wearing a pair of Comoli belted jeans that he bought five or so years ago. A similar style is still available.

Primed for What They Were Pitching

At the close of the 2010s, streetwear was running on fumes. Quiet luxury was entering at stage left. If the Row and Loro Piana were expert at subtle, fine-to-the-touch clothes, so, too, were the likes of T.T, Graphpaper and Yoko Sakamoto.

“I went from this guy that wears pear-shaped pants to just wearing, like, a denim jacket,” said Chris Maradiaga, a tech worker and freelance writer in Vancouver. His wardrobe today consists of Comoli’s black-as-night trousers and a purple-tinged coat by Ssstein. His kaleidoscopic Bode jackets gather dust.

That Ssstein clothes have landed in the closets of men on the other side of the world defies the early guidance relayed to Kiichiro Asakawa, the label’s bushy-haired designer. His “senpais,” or mentors, warned him that his reduced designs might leave Western audiences cold. “You need something powerful,” they told him.

He tried, but it wasn’t necessary. It’s the most minimal designs — his cotton gabardine zip-ups, his “easy” pleated trousers — that people are most interested in now. “It actually makes me very happy,” he said through a translator. “My instincts were right.” Mr. Asakawa won the Fashion Prize of Tokyo in 2024.

Adapting to North American Markets (and Men)

Several Japanese designers noted that they had modified their sizing to accommodate larger, American bodies.

“I’ll ask them, Can you lengthen the pants by three centimeters? Because you need that for the Western market,” Mr. Dilawri of Neighbour said, noting that the designers were receptive to those requests.

A number of labels, like Comoli and Soshiotsuki, are already oversize. That’s the look.

Yet, as luxury fashion labels continue to price out the aspirational middle-class shopper, many of those same shoppers have convinced themselves that the Japanese labels are a better value. A cashmere coat at Prada is $10,000, and you’ll need $1,690 to own a cotton-blend cardigan from Margiela. Similar pieces from Japanese labels can be half that price, or less.

“Brands like Bottega, Balenciaga, the Row — all that stuff — are so unobtainable,” said Mr. Kirkland, whose clothing budget has shifted to A.Presse. “I will never be in that price bracket,” he added, “but I’m wealthy enough to buy a chore coat for $800.”

Of course, Mr. Kirkland and all of the fans of these labels could own a chore coat for far less — but then it wouldn’t be “Made in Japan.”