I'm trying to think of what I wore in the 90's....please bear in mind I was born in 1980 so dressed by my mother in the early 90's!!!
My early 90's
I seem to remember bicycle shorts and those awful coloured tshirts that changed colour when you got hot - seriously, we dont' need to know youre sweating
Then in my school levi 501's worn with levi zip up hoodies were the thing to wear
Denim shirts - levis were the trendiest
My mid 90's
Grunge, grunge, grunge. Nirvana tshirts, army shirts, lumberjack shirts, combats, jeans, converse or doc martens
After a style evolution and an appearance from Madonna at the VMA's, satin shirts in electric colours took over dancefloors all over the country.
Late 90's
All I remember are boob tubes - I just started dressing preppier the older I got so I can't remember trends!!
Oh Christ and embellished jeans!!
And for some reason, those sweatpants made out of nylon with the buttons up the side that you could rip off just popped into my head

I was pretty sporty so I think I spent most of my teenage years on a tennis court in tracksuits - the glamour! B)