What does this come under?
 

what would this fashion come under?

school uniform...

but ive seen alot of peopel wear it as a fashion. i was curious if it came under a title

The only people that wear clothes like that are school girls or cosplayers.

The title I'd give it is outdated. Leg warmers went out of style a few years ago. Too bad, I liked them. I guess I am chotto sukebe desu.;)

people all ver australia are wearing them... to bad they aren't good quality

I think we all are a little bit;)

Obviously the elastic in these stockings need replacing or are they leg warmers?

actually that is the normal...not about the elastic problem

They were called "loose socks" and came into fashion about 15 years ago. It was one of the only parts of a school uniform that wasn't strictly regulated so girls could "express themselves" with their socks.

Sometimes the socks themselves were over a meter long and were held up with "loose socks glue" for the perfect look.

And I worked in a Japanese high school in the mid-90s, and that's why I know, if you are curious.