At the Sundance Film Festival, style plays by different rules. This is a red carpet where practicality meets personality, and stars routinely swap couture gowns for boots, knits and perfectly broken-in tailoring. The 2026 festival was no exception, with Hollywood favourites including Olivia Wilde, Charlie XCX and Kiernan Shipka embracing darkly glamorous, relaxed silhouettes and a distinctly indie sensibility that feels worlds away from awards-season gloss. From sharp suiting to bohemian layers and effortlessly undone beauty, these looks prove that Sundance may be low-key – but it’s never low effort. Here, fashion is less about spectacle and more about confidence, comfort and quiet cool. © Getty Images Charli XCX Charli put a sharp, subversive spin on festival dressing in a tailored black suit paired with a striped tie and flowing shirt. The masculine-leaning silhouette feels intentionally oversized, balanced by pointed heels and dramatic, glossy hair worn long and loose. Draping a faux-fur coat at her side, she injects high-fashion attitude into Sundance’s casual setting – proof that even low-key festivals can still handle a little …