Leggings: The New Sweatshirt

My mom was an elementary school nurse before she retired and I remember this woman having a different sweatshirt for every holiday, AND THEN SOME.  If I recall, some of her sweatshirts even had tiny mirrors on them.  Whoa.

What I have noticed from my teacher clients is that themed leggings are the new sweatshirt.  They have leggings with hearts, cupids, reindeer, pumpkins, bats, american flags, etc.  Is there a holiday (usually commercial or Christian) for it? They've got it.

​I wonder what the next trend will be....