The 1980s early-to-mid 1980s
Jane Fonda and the Aerobics Boom
A 1982 workout video turned a Hollywood actress into the unlikely face of a genuine national fitness movement - and, with it, made studio activewear something worth being seen in outside the studio.
Jane Fonda's Workout, released in 1982, became one of the best-selling home videos of the entire decade and, more importantly for this project, turned aerobic exercise from a relatively niche fitness activity into a genuine mainstream cultural movement with its own visual identity. Fonda wasn't a fitness professional - she was a well-known actress with a real personal investment in the workout's effectiveness - and that celebrity framing is part of what made the tape land with such broad, immediate reach rather than staying confined to people already serious about exercise.
The visual side of that movement is really this decade's whole aerobics silhouette in miniature: leotards and bodysuits, scrunched leg warmers, sweatbands, all rendered in the loudest available spandex and neon synthetic fabrics the era's textile technology could produce. What's genuinely notable is how completely this studio uniform escaped the studio - people who had never taken an aerobics class at all started wearing pieces of this look as ordinary daywear, which tells you the movement was selling an identity and an aspiration as much as it was selling actual fitness instruction.
I think the deeper story here is about visible effort becoming a status symbol in a way it hadn't quite been before - showing up in full aerobics kit signaled discipline, time, and money spent on one's own body, at a cultural moment that was, more broadly, increasingly comfortable with open, unapologetic self-improvement as a public performance. That's a genuinely different emotional register than either the decade's buttoned-up preppy opening or its boardroom-focused power dressing, and it's arguably the most purely optimistic fashion story this whole decade produces.