I've been wearing these leggings for years.  I usually get them at the department stores, and even when they're on sale it's never this good a price.  I stocked up and got 7 pairs in large.  I machine wash and dry them, and they hold up surprisingly well.  Also, I like that the black color doesn't fade easily, and the leggings are very opaque so I don't have to worry about see-through.