Ever walked into a Lululemon, stared at the leggings wall, and just gulped in wonderment? Us too. There are so many different styles, fabrics, and colors that we barely know where to begin, but that’s also what makes Lululemon so amazing; whether you’re a yogi or a marathoner, they’ve got gear for you. In an effort to curb your confusion, we’ve rounded up some of Lululemon’s most popular leggings and explained what sets each pair apart. For the sake of this experiment, we’ve compared black full-length leggings. That way, you can really understand the subtle but important differences. Because, you know, it’s the little things that matter most.