In November, United States Transportation Secretary Sean Duffy launched a “civility campaign” in which he urged Americans to “dress with respect” on flights. In other words: leave your sweatpants at home, put on some trousers, and stop causing a scene on planes, you heathens. While Theory’s Martin Andersson is certainly not designing with the US government’s directive in mind, his fall 2026 offering of elevated everyday pieces in deceptively comfortable fabrics unwittingly fit the bill.
Andersson engineered a collection full of pieces that require minimal effort, yet deliver maximum payoff: pull-on trousers in a relaxed, tapered silhouette; sharp blazers in nylon and tropical wool; sweater sets that telegraph a put-togetherness. On the knitwear front, in an especially exciting development for the Theory team, many of the pieces were rendered in an ultra-soft yarn spun from the undercoat of baby yaks. While Andersson likes to make a practice of meeting the animals he sources from (last time we met, he showed me a photo of the sheep whose wool produced a double-faced coat), he has yet to make the acquaintance of this latest fabric provider. “I haven’t met the baby yak,” he said. “But I have Googled pictures, and I can tell you they are so cute.”
This season, Andersson found a muse in Chet Baker. “You can see some of that ’50s influence in the silhouette. You have this square-ish silhouette, this relaxed ease to it,” he said, pointing to a funnel-neck trench coat and a reversible leather jacket with a shearling lining. While the ’50s loomed large, the collection was also imbued with a ’90s-inspired minimalism. Hidden plackets ensured button-downs reached optimal sleekness, while a sweater with no neck seam allowed for a perfectly cool droop.
“Some people just have that effortless ease about them. Theory clothes that should have that, right?” Andersson said. “You shouldn’t have to think about it too much. It should be easy.”
