Hilary Duff makes track pants the new weekend uniform

Hilary Duff has found the easiest way to make weekend dressing look intentional again: skip the black leggings and reach for track pants instead. In Los Angeles, she wore Adidas Firebird Loose Track Pants with an oversized sweater, white tennis shoes and a beige crossbody bag, a formula that lands in that sweet spot between relaxed and pulled together.

The appeal is in the shape. Wide-leg track pants skim instead of cling, so the look feels easier than leggings without losing structure. Erin Fitzpatrick at Who What Wear described the switch as “effortless, slightly nostalgic, and, let’s be honest, way more comfortable” than standard black leggings, and Duff’s outfit backed that up. The sweater softened the sportiness, the white sneakers kept it clean, and the bag made the whole thing read like an outfit, not a workout detour.

The exact pair matters too. Who What Wear identified Duff’s pants as Adidas Firebird Loose Track Pants, priced at $75. That price keeps the trend in real-life territory, especially for readers who want something more interesting than another pair of black leggings but still practical enough for errands, school runs or a coffee stop that turns into a long afternoon.

adidas’ own history explains why this works so well. The brand says its 3-Stripes became official in 1949, and the Samba debuted in the 1950s as an indoor soccer shoe before becoming a street-style staple with a 70-year history. That kind of legacy gives the track pant an easy shorthand: it looks current, but it never feels like a passing gym-floor trend. On adidas’ Originals side, track pants are framed as classic essentials, which is exactly how Duff wore them.

Duff has already repeated the formula. On April 12, 2026, she was spotted at a farmers market in Studio City in black Adidas track pants and a chunky brown sweater with a canvas tote, while Star Style added square sunglasses and a Balenciaga Rodeo Mini bag to the mix. Taken together, the sightings make the point clearly: track pants are replacing leggings because they do the same comfortable work with a better line, a little more nostalgia and a lot more polish.