Choosing what leggings to wear for your workout is almost as significant a decision as deciding to workout in the first place. The right gear — especially leggings — can totally transform your workout ...

So does this viral "leggings theory" actually hold up in real life? To find out, I decided to put three pairs of my favorite butt-lifting gym leggings to the test. You know . . . for science.

That's a task I thought would prove to be difficult given my modest fashion preferences. However, I was pleasantly surprised ...