Refers to close-fitting legwear covering from the waist down, including the feet. In Japanese usage, タイツ often implies thicker, opaque tights, while ストッキング is used for sheer stockings.
It was cold, so I put on some thick tights.
On cold days, I wear tights under my skirt.
Black tights go well with the uniform.
My new tights got a run in them right away.
fishnet tights; fishnet stockings
Loanword from English 'tights'.