How long have baggy clothes been in fasion? It’s nothing I associate with the 70’s. Maybe 80’s?
Does “The Puffy Shirt” [TM] count?
Perhaps a melding of hip-hop fashion and grunge look? In either case, that damned baggy look became widespread by the late 1980s. It always looked infantile to me.
I always thought it was a reaction against the spandex and super-tight jeans of the eighties. Circa 1990.
I’m guestimating it started with grunge. Although, what were rappers wearing around that time?
I don’t remember it in high school at all, by the time I graduated college, it was all over the damned place (why do I feel compelled to add a ‘whippersnappers!’ here?). So somewhere between 1989 and 1993. Maybe earlier in big cities like LA.
MC Hammer’s parachute pants immediately come to mind. Was that late 80s or early 90s?